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Rigetti Computing

Rigetti Computing, Inc. (NASDAQ: RGTI) is a full-stack quantum computing company that develops superconducting quantum processors, quantum processing units (QPUs), and integrated quantum systems to enable practical quantum applications.^[1] Founded in 2013 and headquartered in Berkeley, California, the company provides cloud-based access to its quantum hardware through the proprietary Quantum Cloud Services (QCS) platform, as well as integrations with partners like Microsoft Azure, serving researchers, enterprises, and governments worldwide.^[2]^[1] The company was established by physicist Chad Rigetti, who previously conducted quantum computing research at IBM and studied under Yale professor Michel Devoret.^[3] Rigetti Computing pioneered cloud-accessible quantum computers in 2017, marking an early milestone in democratizing quantum technology.^[4] In October 2021, it announced a merger with special purpose acquisition company Supernova Partners Acquisition Company II, completing the transaction in March 2022 to become a publicly traded entity and raising approximately $458 million in gross proceeds.^[5] Since then, Rigetti has operated fabrication facilities in Fremont, California, and expanded internationally with offices in London and Sydney.^[1] Rigetti's core technology focuses on tunable superconducting qubits, enabling universal gate-model quantum computation with high-fidelity operations essential for error-corrected quantum algorithms.^[6] Key achievements include the December 2024 launch of the Ankaa-3, an 84-qubit processor featuring extensive hardware redesigns for improved connectivity and performance, achieving a 99.5% median two-qubit gate fidelity—a critical metric for reducing errors in quantum circuits.^[7] Building on this, in July 2025, Rigetti demonstrated the industry's largest multi-chip quantum computer, the Cepheus-1-36Q, comprising four 9-qubit chiplets interconnected via proprietary modular technology, which halved two-qubit gate error rates to 99.5% median fidelity and showcased scalability using semiconductor-inspired fabrication methods.^[8] The system entered general availability in August 2025 on QCS and Azure, supporting advanced research in optimization, machine learning, and materials simulation.^[4] Looking ahead, Rigetti is advancing toward quantum advantage by targeting a 100+ qubit multi-chip system with 99.5% fidelity by the end of 2025, while securing contracts such as purchase orders for quantum systems and collaborations with entities like India's Centre for Development of Advanced Computing.^[4]^[9] The company's mission emphasizes solving complex global challenges in drug discovery, climate modeling, and cryptography through fault-tolerant quantum computing.^[2]

Overview

Founding and Leadership

Rigetti Computing was founded on July 8, 2013, by Chad Rigetti, a physicist specializing in quantum information science, marking it as the world's first full-stack quantum computing company dedicated to developing superconducting qubit-based systems.^[10]^[11] Rigetti established the company in Berkeley, California, with the goal of creating practical, scalable quantum computers to address complex computational challenges beyond the reach of classical systems.^[12] Chad Rigetti earned a PhD in applied physics from Yale University in 2010, where he worked under Michel Devoret, a pioneer in superconducting quantum circuits, focusing on qubit coherence and quantum error correction.^[13]^[12] Following his doctorate, he spent three years at IBM's Watson Research Center as a technical lead in superconducting quantum computing, contributing to advancements in 3D integrated qubit architectures.^[14] Motivated by the limitations of academic and corporate research environments in commercializing quantum technology, Rigetti launched the company to integrate hardware fabrication, software development, and cloud access under one roof.^[12] The initial team was built by recruiting experts from prominent organizations, including quantum researchers from IBM, NASA, and academic institutions like Yale and Stanford, to develop in-house capabilities in qubit design, fabrication, and control electronics.^[3] Chad Rigetti served as CEO from founding until December 2022, guiding the company through early R&D and initial funding rounds.^[11] In 2022, leadership transitioned to Dr. Subodh Kulkarni, a semiconductor industry veteran with over 30 years of experience, who became President and CEO on December 12, 2022, to accelerate commercialization and scaling efforts.^[15] As of 2025, the executive team includes David Rivas as Chief Technology Officer, overseeing hardware and systems integration since February 2023; Jeffrey Bertelsen as Chief Financial Officer; and Andrew Bestwick as Senior Vice President of Quantum Systems, focusing on processor development.^[16] This structure supports Rigetti's full-stack approach, with specialized leadership in quantum hardware and software ecosystems.^[16]

Mission and Business Model

Rigetti Computing's mission is to build the world's most powerful quantum computers using superconducting qubit technology to solve humanity's most pressing problems, with a focus on achieving quantum advantage through an end-to-end full-stack approach that encompasses chip design, fabrication, and cloud-based access.^[1]^[17] This strategy emphasizes practical deployment of quantum systems to enable breakthroughs in fields like drug discovery, materials science, and optimization, prioritizing accessibility for researchers and enterprises via integrated hardware and software platforms.^[1] The company's business model centers on vertical integration, handling in-house design, fabrication, packaging, and deployment of quantum systems to streamline development and reduce dependencies on external suppliers.^[18] Revenue is generated through multiple streams, including quantum computing-as-a-service (QCaaS) via its Quantum Cloud Services platform, sales of hardware such as the Novera 9-qubit quantum processing unit (QPU), and contracts with government agencies like DARPA for advancing quantum benchmarking initiatives.^[19]^[20]^[21] This full-stack model differentiates Rigetti from competitors by enabling faster iteration cycles and cost efficiencies, positioning the company to target utility-scale quantum computing—capable of outperforming classical systems on practical applications—by 2033, as aligned with DARPA's Quantum Benchmarking Initiative.^[22]^[21] As of 2025, Rigetti's goals include scaling to 100+ qubit systems achieving over 99.5% two-qubit gate fidelity by year-end, while integrating quantum processors with classical AI infrastructures through partnerships like NVIDIA's NVQLink platform to support hybrid quantum-AI workflows.^[23]^[24]

History

Early Development (2013–2017)

Rigetti Computing was founded in 2013 in Berkeley, California, by physicist Chad Rigetti, who had previously worked on quantum computing circuits at IBM Research. The company was established as the first dedicated to developing full-stack, universal gate-model quantum computers using superconducting qubits, aiming to integrate hardware fabrication, software, and cloud access from the outset. Initial research and development efforts began with a focus on designing and prototyping superconducting quantum integrated circuits to enable practical quantum processing units (QPUs).^[25]^[26] In April 2014, Rigetti secured $2.5 million in seed funding led by AME Cloud Ventures, with participation from investors including Tim Draper and Y Combinator, which supported the expansion of its early R&D team and prototyping of quantum circuits. During 2014 and 2015, the company advanced the development of early superconducting quantum integrated circuits, achieving initial demonstrations of qubit coherence times exceeding previous benchmarks for similar devices through optimized fabrication techniques. In 2014, Rigetti patented a hybrid quantum-classical co-processor architecture to bridge quantum and classical computing, and by 2015, it had established its primary research facility in Berkeley to accelerate qubit design and testing. These efforts laid the groundwork for multi-qubit systems while addressing foundational challenges such as improving qubit relaxation times (T1) and dephasing times (T2) to reduce decoherence.^[27]^[25]^[28] By 2016, Rigetti commissioned Fab-1, a specialized fabrication facility in Fremont, California, to produce quantum devices in-house and iterate rapidly on circuit designs. The company also initiated early collaborations with academic institutions to validate qubit performance and explore applications, drawing on Rigetti's expertise in superconducting materials. In 2017, Fab-1 officially opened as the world's first dedicated manufacturing facility for quantum integrated circuits, enabling tighter control over production processes like superconducting film deposition and lithography tailored for qubits. That same year, Rigetti achieved a key milestone with the development and deployment of its 8-qubit quantum processor, demonstrating universal gate-model quantum computing capabilities accessible via cloud services—the second company to do so after IBM. However, early prototypes faced significant challenges in scaling coherence times and minimizing error rates, with typical qubit T1 times around 10-20 microseconds and two-qubit gate errors exceeding 5%, limiting reliable operation beyond small qubit counts.^[25]^[29]^[30]

Growth and Commercialization (2018–2022)

In 2018, Rigetti Computing launched Quantum Cloud Services (QCS), a hybrid platform providing remote access to its quantum processing units (QPUs) integrated with classical computing resources via the cloud.^[31] This service marked a pivotal shift toward commercialization, enabling developers worldwide to run quantum algorithms without on-site hardware.^[32] Concurrently, the company integrated its Forest software platform—previously released in 2017—into QCS as a key tool for designing and simulating hybrid quantum-classical workflows, serving as a foundational predecessor to later software offerings.^[33] From 2019 to 2020, Rigetti advanced its hardware portfolio with the release of higher-qubit Aspen-series systems, including the 19-qubit processor made available through Forest for applications like machine learning demonstrations.^[34] In 2020, the company introduced the 32-qubit Aspen-8, featuring an octagonal qubit lattice for improved connectivity and integration with Amazon Braket for broader accessibility.^[10] These developments supported scaling efforts amid substantial funding, with a $79 million Series C round led by Bessemer Venture Partners in August 2020, contributing to over $100 million raised across rounds in this period to fuel R&D and operations.^[35] During this time, Rigetti expanded internationally, establishing offices in the United Kingdom, Canada, and Australia to support global collaborations and talent acquisition.^[36] In 2021, Rigetti demonstrated advancements in hybrid quantum-classical algorithms through its QCS platform, enabling real-time execution of variational quantum eigensolvers and other optimization tasks too complex for classical simulation alone.^[37] The company forged key partnerships with enterprises, including a collaboration with Riverlane and Astex Pharmaceuticals to explore quantum-enhanced drug discovery via proof-of-concept simulations on Aspen systems.^[38] These initiatives highlighted practical applications in chemistry and materials science, positioning Rigetti as a leader in near-term quantum utility. By 2022, Rigetti achieved significant commercialization milestones, culminating in a SPAC merger with Supernova Partners Acquisition Company II, completed on March 2, which listed the company on NASDAQ under the ticker RGTI and raised approximately $458 million in gross proceeds.^[39] The company released its 80-qubit Aspen-M processor, the first commercial multi-chip quantum system demonstrating inter-die entangling gates and integration with Amazon Braket for enterprise access.^[40] In December, leadership transitioned with Dr. Subodh Kulkarni appointed as President and CEO, bringing semiconductor expertise to drive scaling and market expansion.^[15]

Recent Milestones (2023–2025)

In 2023, Rigetti Computing advanced its superconducting quantum processor technology with the internal deployment of the 84-qubit Ankaa-1 system in March, marking a significant step toward higher-fidelity operations.^[41] This was followed by the public availability of the improved 84-qubit Ankaa-2 system in December, which demonstrated a 2.5x performance improvement over prior QPUs through enhanced two-qubit gate fidelities.^[42] The company also introduced the Novera 9-qubit QPU as its first commercially available on-premises quantum processor, designed to support research and development in hybrid quantum-classical computing.^[41] Throughout the year, Rigetti emphasized progress in quantum error correction, including foundational demonstrations of error mitigation techniques on its Aspen-series systems to reduce logical error rates in multi-qubit operations. Building on these efforts in 2024, Rigetti launched the 84-qubit Ankaa-3 system in December, featuring a redesigned cryogenic architecture and achieving a median two-qubit gate fidelity of 99.5%, which halved error rates compared to previous generations.^[7] This milestone supported advanced error correction experiments, including real-time decoding on the Ankaa-2 platform in collaboration with external researchers, enabling low-latency feedback loops for fault-tolerant computing.^[43] Concurrently, the company achieved its first commercial sales of the Novera 9-qubit QPU, delivering units to Horizon Quantum Computing in April 2024 and to Montana State University in August 2025, expanding access to on-premises quantum hardware for academic and industry applications.^[44]^[45]^[46] In 2025, Rigetti demonstrated the 36-qubit Cepheus-1-36Q multi-chip system on July 16, the industry's first such processor to interconnect four chiplets via superconducting links, attaining 99.5% median two-qubit gate fidelity and demonstrating scalability for larger qubit arrays, with general availability in August.^[8] This was complemented by a September announcement of $5.7 million in purchase orders for two Novera QPU systems, underscoring growing commercial demand for modular quantum hardware.^[47] Rigetti's third-quarter financial report on November 10 highlighted total revenues of $1.9 million, alongside a roadmap targeting deployment of a 100+ qubit chiplet-based system by year-end to further error-corrected logical qubits.^[48] Additionally, in October, the company integrated its QPUs with NVIDIA's NVQLink platform, enabling hybrid quantum-GPU workflows for accelerated algorithm development in AI and optimization tasks.^[24] Rigetti's contributions to the quantum ecosystem during this period included open-source releases under its Forest SDK, such as updates to the Quil quantum instruction language and pyQuil library, which facilitated community-driven benchmarking and algorithm testing across over 100 research institutions.^[49] These efforts, combined with participation in industry benchmarks like those from the Quantum Economic Development Consortium, helped establish performance standards for superconducting qubits, promoting interoperability and adoption in fields like materials science and cryptography.^[18]

Technology

Quantum Processors and Hardware

Rigetti Computing develops quantum processors based on superconducting transmon qubits, which utilize Josephson junctions as the nonlinear inductive elements to enable tunable qubit frequencies and gate operations.^[49] These qubits are fabricated on silicon chips using superconducting materials like aluminum, with the Josephson junctions formed by thermally oxidized amorphous aluminum oxide tunnel barriers.^[50] The transmon design suppresses charge noise, providing a robust platform for scalable quantum computing.^[51] A key innovation in fabrication is the alternating-bias assisted annealing (ABAA) technique, which applies low-voltage alternating polarity pulses during a room-temperature or low-temperature anneal to reorder atoms in the amorphous oxide layer of Josephson junctions.^[50] This process achieves precise control over junction resistance and critical current, with modifications exceeding 70% and yields reaching 97.4%.^[50] ABAA improves qubit frequency targeting and reduces defects, leading to enhanced coherence and stability without requiring high-temperature processing that could damage other chip components.^[50] Rigetti's processor lineup includes the Novera, a 9-qubit system designed as a commercial scale-out unit for research and integration, featuring a main chip with fast two-qubit iSWAP gates and an auxiliary 5-qubit chip for single-qubit characterization.^[20] The Ankaa series represents larger-scale single-chip processors, with the Ankaa-3 offering 84 qubits and median two-qubit gate fidelities above 99%, enabling universal gate-model quantum computation.^[52] For modularity, the Cepheus-1 employs a 36-qubit multi-chip architecture composed of four interconnected 9-qubit chiplets, using deterministic inter-module couplers to maintain high-fidelity operations across chips.^[8] Performance metrics for these processors include median coherence times of approximately 30–40 μs for energy relaxation (T₁) and 20–25 μs for dephasing (T₂*), as demonstrated in the Ankaa-3 system.^[6] Two-qubit gate fidelities reach 99.5% median in the Cepheus-1, halving error rates compared to prior generations and meeting 2025 targets for error-corrected quantum computing.^[8] All processors require operation in dilution refrigerators at millikelvin temperatures (typically 10–20 mK) to suppress thermal noise and maintain superconductivity.^[49] Innovations in multi-chip scaling enable Rigetti to target systems exceeding 100 qubits by the end of 2025, and as of the third quarter of 2025, the company confirmed it remains on track to achieve this milestone, leveraging 3D integration via through-silicon vias and flip-chip bonding for interconnecting chiplets without performance degradation.^[53]^[49]^[54]^[55] Hybrid integration with classical control electronics is facilitated by high-density flexible circuits and multiplexed readout, reducing wiring complexity and supporting seamless coupling to GPU-based systems for hybrid quantum-classical workflows.^[49]

Software and Cloud Platform

Rigetti Computing's software ecosystem centers on the Quil programming language and the Quantum Cloud Services (QCS) platform, enabling developers to design, compile, and execute quantum algorithms on both simulators and physical quantum processing units (QPUs).^[56] Quil, an open-source quantum instruction language, allows precise definition of quantum circuits using a human-readable syntax that specifies gates, measurements, and classical controls, facilitating reproducible quantum computations.^[57] Developed initially at Rigetti, Quil's specification supports extensions such as Quil-T, which integrates user-defined calibrations and pulse-level controls to address hardware variability and enable advanced error mitigation techniques like readout error correction.^[58] The QCS platform provides a cloud-based interface for remote access to Rigetti's QPUs, including job submission, queuing, and monitoring, while supporting hybrid quantum-classical workflows that integrate quantum executions with classical high-performance computing resources.^[59] Evolving from the earlier Forest SDK, QCS offers ultra-low latency connectivity and multi-cloud compatibility, allowing seamless integration with external hardware for accelerated hybrid applications.^[60] As of 2025, QCS hosts advanced systems like the 84-qubit Ankaa-3 processor, enabling users to run large-scale quantum jobs with improved scalability.^[61] Key tools in the ecosystem include the PyQuil library, a Python interface that simplifies Quil program construction, execution, and simulation by wrapping Quil instructions in familiar Python objects and functions.^[62] PyQuil facilitates integration with broader scientific computing stacks, supporting quantum machine learning through plugins like PennyLane for differentiable quantum circuits and optimization algorithms via libraries such as Grove, which implements variational methods for problems like combinatorial optimization.^[63]^[64] By 2025, Rigetti's software features enhanced capabilities for practical quantum programming, including real-time calibration powered by AI-driven automation in partnership with Quantum Machines, which optimizes qubit tuning during runtime to maintain performance.^[65] Noise-aware compilation, implemented in the quilc optimizing compiler, accounts for device-specific error profiles to generate more reliable circuits by adjusting gate sequences and reducing decoherence impacts.^[66] Additionally, QCS integrates with NVIDIA's CUDA-Q platform via NVQLink, enabling low-latency hybrid quantum-GPU workflows for AI-accelerated simulations and error decoding.^[24] These advancements collectively lower barriers for developers working on noisy intermediate-scale quantum (NISQ) devices.

Operations

Manufacturing Facilities

Rigetti Computing operates its primary manufacturing facility, known as Fab-1, in Fremont, California, which serves as the company's dedicated quantum device foundry for producing superconducting quantum integrated circuits. Established in 2017, Fab-1 was the industry's first integrated facility specifically designed for quantum chip fabrication, enabling vertical integration of design, manufacturing, and testing processes. The facility features a cleanroom environment that supports the production of superconducting chips using established semiconductor techniques, including plasma etching for material removal and e-beam lithography for precise patterning of critical components like Josephson junctions. This in-house approach allows Rigetti to maintain control over the fabrication pipeline, reducing reliance on external foundries and facilitating iterative improvements in quantum hardware. In 2022, Rigetti expanded Fab-1 by adding approximately 5,000 square feet of cleanroom space dedicated to wafer manufacturing and enhanced testing capabilities, nearly doubling the facility's overall capacity to support higher-volume production of quantum processors. The expansion has enabled the production of multi-chip quantum systems, such as the 36-qubit modular processor released in 2025, while preserving rapid prototyping cycles that can complete in weeks rather than months compared to outsourced alternatives. On-site cryogenic testing infrastructure, including dilution refrigerators, allows for immediate characterization of fabricated chips at millikelvin temperatures, minimizing transportation needs and contributing to operational efficiency. A key advancement in Fab-1's capabilities came in 2024 with the introduction of Alternating-Bias Assisted Annealing (ABAA), a novel fabrication process developed to improve Josephson junction uniformity and reduce defects such as two-level systems (TLS) that degrade qubit coherence. In April 2025, Rigetti received a $5.48 million grant from the U.S. Air Force Office of Scientific Research (AFOSR) to further investigate and refine ABAA technology, aiming to enhance the scalability and performance of superconducting quantum processors. These upgrades underscore Fab-1's role in advancing Rigetti's production of high-fidelity quantum hardware, with the facility now supporting both internal R&D and external foundry services for the quantum research community.

Global Locations

Rigetti Computing maintains its headquarters in Berkeley, California, where research and development activities, executive offices, and the creation of developmental quantum processing units (QPUs) are centered.^[1]^[67] The company operates a key manufacturing and testing facility in Fremont, California, known as Fab-1, which serves as the industry's first dedicated quantum device manufacturing site.^[68]^[47] In Europe, Rigetti has established an office in London, United Kingdom, functioning as a hub for regional research and development efforts, with expansion announced in 2022 following initial project commitments in 2020.^[69]^[70] Rigetti's presence in the Asia-Pacific region is anchored in Sydney, Australia, which operates as a collaboration center emphasizing ties with academic institutions and applications development, with operations noted in company disclosures from 2022 onward.^[67]^[71] As of 2025, Rigetti employs approximately 150 people across these locations, supplemented by remote workers drawn from a global talent pool to support its distributed operations.^[72]

Business Developments

Funding and Financial Performance

Rigetti Computing secured approximately $198 million in pre-IPO funding across multiple rounds from 2013 to 2021, with key investors including Y Combinator and Andreessen Horowitz.^[73]^[3]^[74] The company went public in March 2022 through a SPAC merger with Supernova Partners Acquisition Company II, receiving gross proceeds of $261.75 million to support quantum hardware development and operations.^[17] In the second quarter of 2025, Rigetti completed an at-the-market equity offering, raising $350 million in gross proceeds to bolster its balance sheet for research and development initiatives.^[53] For the third quarter of 2025, Rigetti reported revenue of $1.9 million, primarily derived from research contracts, cloud quantum computing services, and sales of on-premises quantum systems such as the Novera QPU.^[55] The company recorded a GAAP net loss of $201.0 million, largely attributable to a $181.9 million non-cash charge from changes in the fair value of derivative warrant liabilities, alongside an operating loss of $20.5 million driven by elevated research and development expenses of $15.0 million as the firm scales its quantum processor technology.^[55] Cash, cash equivalents, and available-for-sale investments stood at $558.9 million as of September 30, 2025, increasing to approximately $600.0 million by November 6, 2025, following $46.5 million in proceeds from warrant exercises.^[55] Rigetti's revenue model emphasizes services and contracts, which constitute the majority of its income, supplemented by hardware sales including quantum processing units.^[55]

Partnerships and Recognition

In April 2025, Rigetti Computing received a $5.48 million grant from the Air Force Office of Scientific Research (AFOSR) to advance its Alternating-Bias Assisted Annealing (ABAA) chip fabrication technology, aimed at reducing defects in superconducting qubits.^[75] This initiative formed a consortium including Iowa State University, the Royal Melbourne Institute of Technology (RMIT), the University of Connecticut, and Lawrence Livermore National Laboratory to deepen understanding of the ABAA process.^[75] In September 2025, Rigetti, in collaboration with QphoX, was awarded a $5.8 million contract from the Air Force Research Laboratory (AFRL) to develop superconducting quantum networking technologies, focusing on quantum transducers for entanglement distribution.^[76] Rigetti's industry partnerships expanded in 2025 with its selection for Stage A of DARPA's Quantum Benchmarking Initiative (QBI) in April, a program evaluating pathways to fault-tolerant quantum computing.^[21] However, on November 6, 2025, Rigetti was not initially selected for Stage B, though the company remains optimistic about future opportunities in the program.^[55] In October 2025, Rigetti announced support for NVIDIA's NVQLink platform, enabling hybrid AI-quantum computation by integrating quantum processors with GPU-based supercomputers for low-latency data exchange.^[24] These collaborations underscore Rigetti's role in bridging quantum and classical systems. Rigetti earned recognition through its inclusion in the Russell 3000 Index in 2024, reflecting its growing market presence among U.S. equities.^[77] In early 2025, the company secured three Innovate UK Quantum Mission Pilot Awards totaling £3.5 million to develop superconducting quantum systems, including upgrading its existing 24-qubit processor for the UK's National Quantum Computing Centre (NQCC).^[78] The MIT Quantum Index Report 2025 included Rigetti among quantum processing unit providers in its benchmarks for qubits and gate fidelity.^[79] These partnerships and recognitions validate Rigetti's technology roadmap, aligning with DARPA's goal of achieving utility-scale quantum computing by 2033 through rigorous benchmarking and scalable hardware advancements.^[21]

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Jan 4, 2024 · The Company's 84-qubit Ankaa™-2 system is now publicly available to all of its customers via Rigetti Quantum Cloud Services (QCS™).
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Rigetti and Riverlane Progress Towards Fault Tolerant Quantum ...
Oct 31, 2024 · Rigetti and Riverlane's recent work demonstrating real-time and low-latency quantum error correction on Rigetti's 84-qubit Ankaa™-2 system is an ...
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Rigetti Computing Delivers Novera™ QPU to Horizon Quantum ...
Apr 23, 2024 · Rigetti sells Novera QPU to Horizon Quantum Computing for its first quantum computing system in its newly opened hardware testbed in Singapore.
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Rigetti Computing Reports Fourth Quarter and Full-Year 2024 Results
Mar 5, 2025 · Rigetti sold a Novera QPU to Montana State University (MSU) in December 2024, which was the Company's first QPU sale to an academic institution.Missing: commercial | Show results with:commercial
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Rigetti Announces Purchase Orders for Two Quantum Computing ...
Sep 30, 2025 · Rigetti Announces Purchase Orders for Two Quantum Computing Systems Totaling Approximately $5.7 Million ... BERKELEY, Calif., Sept. 30, 2025 ( ...Missing: CTO | Show results with:CTO
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Building scalable, innovative quantum systems - Rigetti Computing
Rigetti processors use arrays of qubits coupled to one another with on-chip capacitances. Single and multi-qubit logic operations are implemented through the ...<|control11|><|separator|>
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Alternating-bias assisted annealing of amorphous oxide tunnel ...
Aug 12, 2024 · The ABAA technique entails applying an alternating polarity voltage pulse train to the as-grown junctions during a global, low-temperature ...
[50]
Quantum computing research - Rigetti Computing
Coherent control of a superconducting qubit using light. Here, we demonstrate coherent optical control of a superconducting qubit. We achieve this by ...Entanglement Across Separate... · Benchmarking Quantum... · Correlating Aluminum Layer...
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3 system; Achieves 99.5% median two-qubit gate fidelity milestone
Ankaa-3 features a broad hardware redesign enabling superior performance. Enhancements across the technology stack include a new cryogenic hardware design.
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Rigetti Computing Reports Second Quarter 2025 Financial Results; Announces General Availability of its 36-Qubit Multi-Chip Quantum Computer | Rigetti & Co, LLC
### Summary of Rigetti Computing Q2 2025 Financial Results
[53]
Quil SDK Overview | QCS Documentation
Jan 16, 2024 · Quil is the language you'll use to write quantum programs and the Quil SDK is a suite of software to help you build and run Quil programs.
[54]
Quil Specification
In 2019, at Rigetti Computing, Quil's specification was rewritten in Markdown format by S. Heidel and other Rigetti-based contributors for easier consumption.
[55]
Gain deeper control of Rigetti quantum processors with Quil-T
Dec 10, 2020 · Quil-T introduces a new language extension to QUIL, Rigetti's quantum instruction language, that augments normal QUIL programs with user-defined calibrations.
[56]
Rigetti Computing: Quantum Computing
Our 9-qubit QPU gives you unprecedented access to quantum technology and empowers you to take your research to the next level.About · Careers · Investors · Company News
[57]
Quantum Cloud Services opens in public beta | by Rigetti Computing
Jan 30, 2019 · It has a simple interface for using quantum transformations, or circuits, to detect features in data as part of a machine learning application ...
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Rigetti Computing Launches 84-Qubit Ankaa™-3 on Its Quantum ...
Jul 16, 2025 · Rigetti Computing Launches 84-Qubit Ankaa™-3 on Its Quantum Cloud Services Platform (QCS®) · This content is available exclusively to members.
[59]
Welcome to the docs for pyQuil! — pyQuil 4.17.0 ... - Rigetti Computing
pyQuil allows you to build and execute Quil programs using Python. pyQuil requires installation of the other components of the Quil SDK.
[60]
PennyLane-Rigetti Plugin
PennyLane is a cross-platform Python library for quantum machine learning, automatic differentiation, and optimization of hybrid quantum-classical computations.
[61]
rigetti/grove: Quantum algorithms built using pyQuil. - GitHub
A collection of quantum algorithms built using the Rigetti Forest platform. Grove is licensed under the Apache 2.0 license.
[62]
Quantum Machines and Rigetti Announce Successful AI-Powered ...
Dec 10, 2024 · This successful demonstration shows how automation accelerates quantum computer setup while maintaining the exacting standards required for ...
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Noise and quantum computation — pyQuil 4.17.0 documentation
The two most relevant error mechanisms on the Rigetti QPU right now are: Transmission line noise that makes a 0-state look like a 1-state or vice versa. We ...
[64]
Investor FAQs | Rigetti & Co, LLC
Rigetti has offices in Berkeley and Fremont, California; London, UK; and Adelaide ... Rigetti Computing. Berkeley, CA & Fremont, CA. © Rigetti & Co, LLC 2025.
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Rigetti Quantum Foundry Services
Located in Fremont, CA, Rigetti's FAB-1 engineers combine conventional CMOS processes with novel manufacturing methods to produce state-of-the-art ...
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Rigetti Computing Expands Global Presence with UK Quantum ...
Jun 21, 2022 · News Release. Rigetti Computing Expands Global Presence with UK Quantum Computer Launch. PDF Version. The 32-qubit Aspen-series system will be ...
[67]
Rigetti to build UK's first commercial quantum computer
Sep 2, 2020 · A Californian-based tech company is leading a £10million consortium to create the UK's first commercially available quantum computer.
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Rigetti Computing Expands Global Presence with UK Quantum
Jun 21, 2022 · Rigetti was founded in 2013 by Chad Rigetti and today employs more than 160 people with offices in the United States, U.K. and Australia.
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Rigetti Computing 2025 Company Profile - PitchBook
Rigetti Computing, founded in 2013, is a public company with 159 employees, engaged in full-stack quantum computing. Its stock price is $15.44 with a $4.98B ...Missing: seed | Show results with:seed
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Rigetti Computing Stock: A Pure-Play on Quantum ... - Nanalyze
Oct 11, 2021 · Founded in 2013, San Francisco startup Rigetti Computing raised $198.5 million in disclosed funding from names like Andreessen Horowitz ...Missing: pre- | Show results with:pre-
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Rigetti Computing Reports Third Quarter 2025 Financial Results; Provides Technology Roadmap Updates for 2026 and 2027 | Rigetti & Co, LLC
### Key Financial Metrics for Q3 2025
[73]
Rigetti Granted Air Force Office of Scientific Research Award to ...
The Company designs and manufactures its chips in-house at Fab-1, the industry's first dedicated and integrated quantum device manufacturing ...Missing: cleanroom | Show results with:cleanroom
[74]
Rigetti, in Collaboration with QphoX, Awarded $5.8M AFRL Contract ...
Rigetti, in Collaboration with QphoX, Awarded $5.8M AFRL Contract to Advance Superconducting Quantum Networking. PDF Version. BERKELEY, Calif. and DELFT, The ...Missing: recognitions | Show results with:recognitions
[75]
Rigetti Computing Set to Join Russell 3000® Index - Investor Relations
May 29, 2024 · The Company is set to join the Russell 3000 Index at the conclusion of the 2024 Russell US Indexes annual reconstitution.
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[PDF] Quantum Index Report 2025 - QIR - MIT
Jun 2, 2025 · Quantum computing firms lead the sector, securing $1.6 billion in publicly announced investments during 2024, followed by quantum software ...<|separator|>