Full-Time

Photonics Technical Lead

Updated on 9/3/2026

Infleqtion

Infleqtion

201-500 employees

Full-stack quantum hardware and software

No salary listed

Kidlington, UK

Hybrid

Work from home is permitted up to 2 days per week; occasional visits to the National Quantum Computing Centre in Harwell are required.

PhD

Category
Electrical Engineering
Required Skills
Data Analysis

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Requirements
  • A PhD in Photonics, Optoelectronics, or a related discipline is required.
  • The candidate must have deep expertise in integrated photonics and photonic integrated circuit-based device development.
  • The candidate must have advanced proficiency in photonics simulation techniques, including finite-difference time-domain, eigenmode expansion, finite-element method, beam propagation method, or similar methods.
  • The candidate must have hands-on experience with commercial photonics design, simulation, and layout tools such as Lumerical or Synopsys.
  • The candidate must have a strong understanding of silicon photonics design, layout, fabrication, packaging, and test workflows.
  • The candidate must have experience with lasers, modulators, passive photonic devices, frequency combs, and high-speed optical measurement systems.
  • The candidate must be able to understand complex technical concepts and communicate them clearly to technical and non-technical audiences.
  • The candidate must have at least 5 years of post-PhD experience developing photonic integrated circuit-based devices or integrated photonic systems in quantum, telecommunications, sensing, datacom, or related fields.
  • The candidate must have experience leading technical projects, teams, or work packages in a multidisciplinary environment.
  • The candidate must have experience working with foundries, packaging partners, component suppliers, or external collaborators.
  • The candidate must have a track record of developing complex technologies from concept through validation, prototype, or product transition.
  • The candidate must have experience supporting proposals, externally funded projects, or customer-facing technical programmes.
  • The candidate must be comfortable working in a dynamic, collaborative, matrixed environment.
Responsibilities
  • Lead the UK integrated photonics capability and act as the primary technical point of contact for photonics activities.
  • Oversee the technical performance of a portfolio of photonics projects, ensuring alignment with business, product, and customer objectives.
  • Develop and maintain technical roadmaps for photonic integrated circuits, laser systems, and integrated photonic subsystems.
  • Collaborate with Quantum Systems teams to identify and develop integrated photonics opportunities.
  • Set technical objectives, assess feasibility, manage technical risks, and support project delivery.
  • Present technical updates, milestone reviews, design reviews, and recommendations to internal and external stakeholders.
  • Identify technologies suitable for product development, commercialisation, and intellectual property protection.
  • Lead the design, simulation, layout, fabrication, testing, and packaging of silicon photonics photonic integrated circuits.
  • Design and develop photonic components including lasers, modulators, passive devices, and integrated subsystems.
  • Work with foundry partners, III-V gain chip suppliers, and packaging companies to develop and integrate photonic devices.
  • Lead laboratory testing and characterisation of photonic integrated circuit-based devices, including automated test methods.
  • Characterise lasers and modulated laser systems, including direct-current measurements, frequency noise, relative intensity noise, and high-speed waveform analysis.
  • Evaluate micro-combs and photonic integrated circuit-based approaches for miniature frequency combs and atom-addressing applications.
  • Build, lead, and mentor technical contributors within the photonics team.
  • Assign responsibilities and guide project-level technical contributors toward successful outcomes.
  • Work closely with global technical teams across the United Kingdom, United States, and Australia.
  • Act as a technical interface with partners, suppliers, subcontractors, customers, and collaborators.
  • Support proposal development, statements of work, technical planning, and externally funded programme activities.
  • Promote strong health, safety, and environmental practices and a safe working culture in laboratory environments.
Desired Qualifications
  • Experience with atomic physics applications.
  • Experience with heterogeneous integration of III-V and silicon photonic devices.
  • Knowledge of micro-combs, optical frequency combs, or laser frequency stabilisation.
  • Experience with automated photonics test systems and data analysis.
  • Familiarity with product development, commercialisation, and intellectual property generation.

Infleqtion builds neutral-atom quantum hardware and complementary software for computing, sensing, and security. Its hardware uses lasers to cool and trap neutral atoms and perform quantum operations, with products like Sqale for computation, Tiqker clocks for precise timing, RF receivers for spectrum sensing, and inertial sensors for GPS-denied navigation; its Superstaq software optimizes algorithms across different quantum machines. The company differentiates itself by vertically integrating hardware and software and leveraging neutral-atom technology to scale, along with a history of strategic acquisitions and a NYSE listing. Its goal is to accelerate practical quantum adoption by expanding its roadmap and serving government and commercial customers across computation, sensing, navigation, and secure communications.

Company Size

201-500

Company Stage

Growth Equity (Non-Venture Capital)

Total Funding

$936.6M

Headquarters

Louisville, Colorado

Founded

2007

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Simplify Jobs

Simplify's Take

What believers are saying

  • NASA added $20 million on August 27, 2026, advancing QGGPf hardware development.
  • Infleqtion raised Q2 2026 revenue 116% to $12.6 million and lifted guidance.
  • Chicago and Colorado new innovation centers anchor 2027 deployments and hiring.

What critics are saying

  • Its August 17, 2026 revenue revision came from accounting timing, not new cash.
  • Q2 operating cash burn ran about $14 million excluding payroll-tax timing benefits.
  • Failure to ship IQMP and QGGPf on schedule would freeze government demand and destroy credibility.

What makes Infleqtion unique

  • Infleqtion is the only listed neutral-atom quantum company, after its February 2026 debut.
  • Its Superstaq software and hardware stack spans computing, clocks, RF sensing, and inertial navigation.
  • NASA, Japan's Shunkai, and the UK's NQCC validate its cross-border platform.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Unlimited Paid Time Off

401(k) Company Match

Paid Maternity/Paternity Leave

Student Loan Repayment

Family Leave

Short Term & Long Term Disability

Stock Options

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

-1%

2 year growth

-11%
HPCwire
Aug 27th, 2026
NASA awards Infleqtion $20M as world's 1st Quantum Gravity mission advances toward flight.

NASA awards Infleqtion $20M as world's 1st Quantum Gravity mission advances toward flight. August 27, 2026 Press play to listen to this content LOUISVILLE, Colo., Aug. 27, 2026 - Infleqtion, a global leader in quantum computing and quantum sensing powered by neutral-atom technology, today announced NASA has awarded the company a $20 million follow-on contract to continue development of the Quantum Gravity Gradiometer Pathfinder (QGGPf), a mission led by NASA's Jet Propulsion Laboratory (JPL) that is designed to fly the world's first space-based quantum gravity sensor. The award brings NASA's investment in the program to $40 million and advances the mission into its next phase of hardware development and testing. "This follow-on award reflects the progress our team has made and marks an important step toward the mission's next phase," said Matt Kinsella, Chief Executive Officer of Infleqtion. "The path from quantum science to a system that can fly in space takes years of engineering, testing, and collaboration. Every milestone brings quantum sensing closer to enabling entirely new ways to observe our planet from orbit." "There is an enormous amount of potential for quantum technology use cases in space. We are no longer testing the quantum technology itself, but ways we can use it in the space environment," said Dana Anderson, Chief Science Officer at Infleqtion. "As a NASA-led mission with key contributions from U.S. industry, QGGPf is demonstrating how quantum gravity sensing can operate in low Earth orbit and establishing the technical foundation for future generations of space-based instruments." The QGGPf mission is designed to demonstrate quantum sensor technologies that could transform how Earth's surface gravity is measured from space. As a technology pathfinder, the mission is expected to help inform the design of future science-grade instruments, representing a major step forward in U.S. leadership in space-based quantum sensing and strategic intelligence. U.S. Leading Quantum Innovation in Space This project, conceived by NASA, helps to push the boundaries of frontier science and technology with critical technologies provided by U.S. industry. QGGPf builds on NASA's long legacy of space-based gravity mapping, such as the GRACE and GRACE-FO missions, and applies Infleqtion's quantum engineering capabilities to enable a new class of measurement techniques designed specifically for the microgravity environment of space. By directly measuring subtle variations in Earth's gravitational field, the mission will demonstrate technologies to help reduce risk for future, high resolution, and quantum gravity instruments. These future systems could enable deeper insights into how surface and underground water, ice, and natural resources shift over time, critical data for understanding planetary health, strengthening national and world-wide resilience, and supporting long-term economic and security planning. Building the Quantum Space Sensor QGGPf builds on work done by JPL and Infleqtion on the Cold Atom Lab (CAL) program aboard the International Space Station, and on NASA's long heritage mapping Earth's gravitational field through the GRACE missions. Infleqtion's role on the QGGPf project includes the design, maturation, and integration of the atomic physics package, the quantum core of the sensor, encompassing its vacuum, laser, and control subsystems. The cold-atom system, based on ultracold rubidium atoms cooled to pico-Kelvin scale temperature, is designed to enable direct gravity gradient measurements from space. As part of the next phase of the contract, Infleqtion will work to build an initial sensor head and electronics engineering development unit and test it at the Einstein Elevator, a unique drop tower microgravity facility in Hannover, Germany. Foundation for Future Missions NASA and Infleqtion plan to complete the instrument hardware development over the next three years, followed by a flight demonstration. The work under this phase of the program is expected to be performed through 2027. The mission is expected to launch aboard a low-Earth orbit spacecraft in 2030. To learn more about how Infleqtion's quantum technologies are enabling advances in space exploration, navigation, remote sensing, and defense, visit https://infleqtion.com/space-and-frontier. About Infleqtion Infleqtion, Inc. (NYSE: INFQ) is a global leader in quantum technology, delivering neutral-atom solutions for quantum computing, networking, sensing, and security. With a product portfolio spanning quantum computers, quantum optical clocks, RF receivers, and inertial sensors, Infleqtion's full-stack approach combines high-performance hardware with the company's proprietary Superstaq quantum computing software platform. Infleqtion's systems are already in use by the U.S. Department of Defense, NASA, the U.K. government, and in multiple collaborations with NVIDIA. Infleqtion, in collaboration with NVIDIA, published the world's first demonstration of a materials science application using logical qubits. With operations in the U.S., Europe, and Asia, Infleqtion meets the demands of government and commercial customers across the space, defense, energy, finance and telecommunications sectors. Scientists running large simulations can end up with terabytes of data that then has to... Prior to the June International Supercomputing Conference, ISC High Performance 2026, in Hamburg, Germany, Sean... 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BizWest Media LLC
Aug 26th, 2026
Japanese quantum computer now operational with assist from Infleqtion.

Japanese quantum computer now operational with assist from Infleqtion. Infleqtion provided support for the Japan Science and Technology Agency's Quantum Moonshot program, which recently launched Japan's first operational neutral-atom full-stack quantum computer. Get a month of award-winning local business news, trends and insights Access award-winning content today! Already have a paid subscription? A Maryland native, Lucas has worked at news agencies from Wyoming to South Carolina before putting roots down in Colorado. * Infleqtion gets millions from Energy Dept. quantum program Infleqtion was recently selected to receive $3.9 million from the U.S. Department of Energy's Quantum... * Infleqtion awarded 6M+ by DOE Infleqtion, a quantum information company, was recently awarded $6.2 million in funding from the U.S... * Quantum industry vet joins Infleqtion as technology chief Infleqtion, a quantum information company, has hired Pat Tang as its chief technology officer. * Infleqtion awarded $11M from DoD for quantum-clock project Infleqtion, a quantum information company, was recently awarded $11 million from the U.S. Department of...

Venture Chain LLC
Aug 26th, 2026
Infleqtion wins $20M NASA Quantum Gravity Gradiometer deal.

Infleqtion wins $20M NASA Quantum Gravity Gradiometer deal. NASA added $20 million to Infleqtion's Quantum Gravity Gradiometer Pathfinder, raising total program investment to $40 million. FreeQuantumComputing On August 27, 2026, NASA awarded Infleqtion a $20 million follow-on contract for the Quantum Gravity Gradiometer Pathfinder (QGGPf) mission. The award brings NASA's total investment in the program to $40 million and shifts the work from technology demonstration into hardware development and space-qualification. NASA's Jet Propulsion Laboratory leads the mission. Infleqtion is responsible for the atomic physics package, the quantum core of the sensor. The system uses ultracold rubidium atoms cooled to pico-Kelvin temperatures to measure gravity gradients from orbit. NASA and Infleqtion aim to complete hardware development by 2027 and launch an orbital test no earlier than 2030. The mission extends earlier work by NASA JPL and Infleqtion on the Cold Atom Lab aboard the International Space Station. It also continues NASA's gravity-mapping legacy from the GRACE missions, but with a quantum sensor that measures local gravity gradients rather than inferring mass changes from orbital perturbations. Infleqtion plans to build and test an initial sensor head and electronics engineering development unit at the Einstein Elevator, a microgravity facility in Hannover, Germany. The facility simulates the low-gravity environment the instrument will experience in orbit without the cost of a launch campaign for every test. A quantum gravity gradiometer detects tiny variations in Earth's gravitational field. Those variations reveal mass distributions underground and under ice sheets. NASA identifies applications including monitoring groundwater reserves, ice mass, drought, flooding, and natural-resource shifts. The data would feed into climate and resource-planning models. The QGGPf mission is explicitly a pathfinder. It is designed to prove the technology in low Earth orbit and establish the engineering foundation for future operational instruments, not to replace existing gravity missions immediately. The 2027 hardware-completion date and the 2030 launch target are forward-looking. Infleqtion and NASA supply the schedule, the budget figures, and the technical description. The real test will be whether the sensor survives launch, operates in orbit, and produces gravity-gradient data that matches or exceeds existing methods. For context on Infleqtion's broader sensing work, see its Colorado headquarters and 2027 field-test post. Its quantum sensing explainer covers how atom-based sensors work and where they differ from quantum computers.

WOWK-TV
Aug 25th, 2026
IMS unveils Japan's first full-stack neutral-atom quantum computer "Shunkai," Now operational.

IMS unveils Japan's first full-stack neutral-atom quantum computer "Shunkai," Now operational. Aug 25, 2026, 3:00 AM ET OKAZAKI, Japan, Aug. 25, 2026 /PRNewswire/ - Institute for Molecular Science (hereinafter "IMS"), National Institutes of Natural Sciences, announced on August 24 that Japan's first full-stack neutral-atom quantum computer "Shunkai," developed by a research team led by Professor Kenji Ohmori, is now operational. Quantum computers are being developed in various modalities worldwide. However, there remain challenges to address for their practical applications, such as scalability and error correction during computation. Anticipated to overcome those challenges, neutral-atom quantum computing has been rapidly attracting attention from industry, academia and government worldwide as a groundbreaking new modality. Neutral-atom quantum computing uses a single atom as a qubit (*1) and has exceptional features, including: - Room-temperature operation without the need for a refrigerator. - Achieve quantum entanglement (*2) (the source of quantum speedup) between arbitrary qubits by moving the atoms (qubits) during computations. - Flexibly optimize qubit configuration for each algorithm. - Relatively easy to increase the number of qubits. - Long lifetime of quantum information in each qubit. At the IMS, Professor Ohmori is the project manager leading the neutral-atom quantum computing research and development team for the project "Large-scale and high-coherence fault-tolerant quantum computer with dynamical atom arrays" under the Cabinet Office/JST Moonshot Research and Development Program Goal 6, "Realization of a fault-tolerant universal quantum computer." Aiming at practical quantum computers, the team has developed Japan's first full-stack neutral-atom quantum computer named Shunkai (see Fig. 1). A "full-stack" system, as shown in Fig. 2, refers to a system that integrates multiple layers (stacks) necessary for converting user inputs into drive signals for the computing device to execute computational output as its result. Personal computers and supercomputers are examples of full-stack systems. Inside Shunkai, atomic qubits are captured in an array using "optical tweezers (*3)" generated by tightly focusing laser light with an objective lens. Quantum calculations are performed by irradiating the atoms with microwaves or laser light. The computational results are interpreted by observing the fluorescence from each individual atom with a camera. The IMS has taken the lead in developing this full-stack quantum computer, leveraging a strong industry-academia collaboration within the Ohmori Moonshot Project with Hitachi, Ltd. for the software stack and with Infleqtion, Inc. for the Quantum Processing Unit (QPU) stack. Shunkai will use approximately 50 qubits in its early stage, and will expand its scale to approximately 500 qubits. The system will be partially open to external users for the development of its applications and the demonstration and improvement of quantum error correction (*4). Plans also include collaboration with Yaqumo Inc., where Professor Ohmori serves as a founder and executive advisor, from the viewpoint of the social implementation and upgrade of the quantum computer. Future Developments In the second stage of the Ohmori Moonshot Project "Neutral atom-based fault-tolerant quantum computer" that just started in April 2026, the team will operate this full-stack quantum computer to further develop and improve the integration and control technologies, upgrade the system toward fault tolerance and larger scales, and enable high stability and high-fidelity quantum computation for extended periods of time. By March 2031, at the end of the second stage, the goal is to realize a large-scale, high-performance neutral-atom fault-tolerant quantum computer, with 10,000 physical qubits and quantum error detection and correction capabilities, available to external users. Message from Professor Kenji Ohmori, Institute for Molecular Science: "Neutral atom-based quantum computers have recently been rapidly attracting attention around the world as a new modality that could exceed the limits of the superconducting modality, which started its development earlier. I think it is extremely significant that now we have developed Japan's first full-stack quantum computer in this cutting-edge modality and started its operation. We expect that the external use of our full-stack machine Shunkai, for example, by the theory and software researchers for the development of error-correction technologies, and by the corporate researchers toward practical applications would lead to ripple effects on various fields in industry, academia and government around the world. It is also expected that Shunkai will be integrated with the existing shared supercomputer facility at the IMS to develop into a quantum-GPU hybrid computing center." About Shunkai It is named after Harumi Shibukawa, where his given name "Harumi" is also pronounced as Shunkai, an Edo-period (1603-1867) astronomer who established the first original calendar system in Japan. Calculations of celestial motion on the celestial sphere evoke the precise control of quantum states on the "Bloch sphere," which represents the state of a qubit in the physics expert community. With the highest respect to Shibukawa who developed Japan's first indigenous calendar based on precise calculations, this system Shunkai has been named in the hope that Japan's first full-stack neutral-atom quantum computer will perform precise quantum computations. (Takafumi Tomita, Assistant Professor, Institute for Molecular Science, National Institutes of Natural Sciences) Glossary (*1) Qubit: The basic unit of information in a quantum computer. Unlike conventional bits, which can only take on either "0" or "1," a quantum bit can simultaneously represent both "0" and "1" states through quantum mechanical "superposition." (*2) Quantum entanglement: A phenomenon unique to quantum mechanics where two or more particles (quanta) maintain a strong correlation with each other, even at distances, and the observation result of one instantly determines the state of the other. (*3) Optical tweezer: A technique that uses laser light to capture particles such as atoms or dielectric particles near the focal point. (*4) Quantum error correction: A technique for correcting calculation errors caused by the imperfection of manipulations and influence of the surrounding environment on quantum bits during the calculation process. Because quantum states are extremely fragile and easily broken, this technique is essential for quantum computers. SOURCE Institute for Molecular Science, National Institutes of Natural Sciences NOTE: This content is not written by or endorsed by "WOWK", its advertisers, or Nexstar Media Inc.

PR Newswire
Aug 25th, 2026
IMS unveils Japan's first full-stack neutral-atom quantum computer "Shunkai," Now operational.

IMS unveils Japan's first full-stack neutral-atom quantum computer "Shunkai," Now operational. Vom nachrichtendienst. 25 Aug, 2026, 07:00 GMT Artikel teilen. OKAZAKI, Japan, Aug. 25, 2026 /PRNewswire/ - Institute for Molecular Science (hereinafter "IMS"), National Institutes of Natural Sciences, announced on August 24 that Japan's first full-stack neutral-atom quantum computer "Shunkai," developed by a research team led by Professor Kenji Ohmori, is now operational. Quantum computers are being developed in various modalities worldwide. However, there remain challenges to address for their practical applications, such as scalability and error correction during computation. Anticipated to overcome those challenges, neutral-atom quantum computing has been rapidly attracting attention from industry, academia and government worldwide as a groundbreaking new modality. Neutral-atom quantum computing uses a single atom as a qubit (*1) and has exceptional features, including: - Room-temperature operation without the need for a refrigerator. - Achieve quantum entanglement (*2) (the source of quantum speedup) between arbitrary qubits by moving the atoms (qubits) during computations. - Flexibly optimize qubit configuration for each algorithm. - Relatively easy to increase the number of qubits. - Long lifetime of quantum information in each qubit. At the IMS, Professor Ohmori is the project manager leading the neutral-atom quantum computing research and development team for the project "Large-scale and high-coherence fault-tolerant quantum computer with dynamical atom arrays" under the Cabinet Office/JST Moonshot Research and Development Program Goal 6, "Realization of a fault-tolerant universal quantum computer." Aiming at practical quantum computers, the team has developed Japan's first full-stack neutral-atom quantum computer named Shunkai (see Fig. 1). A "full-stack" system, as shown in Fig. 2, refers to a system that integrates multiple layers (stacks) necessary for converting user inputs into drive signals for the computing device to execute computational output as its result. Personal computers and supercomputers are examples of full-stack systems. Inside Shunkai, atomic qubits are captured in an array using "optical tweezers (*3)" generated by tightly focusing laser light with an objective lens. Quantum calculations are performed by irradiating the atoms with microwaves or laser light. The computational results are interpreted by observing the fluorescence from each individual atom with a camera. The IMS has taken the lead in developing this full-stack quantum computer, leveraging a strong industry-academia collaboration within the Ohmori Moonshot Project with Hitachi, Ltd. for the software stack and with Infleqtion, Inc. for the Quantum Processing Unit (QPU) stack. Shunkai will use approximately 50 qubits in its early stage, and will expand its scale to approximately 500 qubits. The system will be partially open to external users for the development of its applications and the demonstration and improvement of quantum error correction (*4). Plans also include collaboration with Yaqumo Inc., where Professor Ohmori serves as a founder and executive advisor, from the viewpoint of the social implementation and upgrade of the quantum computer. Future Developments In the second stage of the Ohmori Moonshot Project "Neutral atom-based fault-tolerant quantum computer" that just started in April 2026, the team will operate this full-stack quantum computer to further develop and improve the integration and control technologies, upgrade the system toward fault tolerance and larger scales, and enable high stability and high-fidelity quantum computation for extended periods of time. By March 2031, at the end of the second stage, the goal is to realize a large-scale, high-performance neutral-atom fault-tolerant quantum computer, with 10,000 physical qubits and quantum error detection and correction capabilities, available to external users. Message from Professor Kenji Ohmori, Institute for Molecular Science: "Neutral atom-based quantum computers have recently been rapidly attracting attention around the world as a new modality that could exceed the limits of the superconducting modality, which started its development earlier. I think it is extremely significant that now we have developed Japan's first full-stack quantum computer in this cutting-edge modality and started its operation. We expect that the external use of our full-stack machine Shunkai, for example, by the theory and software researchers for the development of error-correction technologies, and by the corporate researchers toward practical applications would lead to ripple effects on various fields in industry, academia and government around the world. It is also expected that Shunkai will be integrated with the existing shared supercomputer facility at the IMS to develop into a quantum-GPU hybrid computing center." About Shunkai It is named after Harumi Shibukawa, where his given name "Harumi" is also pronounced as Shunkai, an Edo-period (1603-1867) astronomer who established the first original calendar system in Japan. Calculations of celestial motion on the celestial sphere evoke the precise control of quantum states on the "Bloch sphere," which represents the state of a qubit in the physics expert community. With the highest respect to Shibukawa who developed Japan's first indigenous calendar based on precise calculations, this system Shunkai has been named in the hope that Japan's first full-stack neutral-atom quantum computer will perform precise quantum computations. (Takafumi Tomita, Assistant Professor, Institute for Molecular Science, National Institutes of Natural Sciences) Glossary (*1) Qubit: The basic unit of information in a quantum computer. Unlike conventional bits, which can only take on either "0" or "1," a quantum bit can simultaneously represent both "0" and "1" states through quantum mechanical "superposition." (*2) Quantum entanglement: A phenomenon unique to quantum mechanics where two or more particles (quanta) maintain a strong correlation with each other, even at distances, and the observation result of one instantly determines the state of the other. (*3) Optical tweezer: A technique that uses laser light to capture particles such as atoms or dielectric particles near the focal point. (*4) Quantum error correction: A technique for correcting calculation errors caused by the imperfection of manipulations and influence of the surrounding environment on quantum bits during the calculation process. Because quantum states are extremely fragile and easily broken, this technique is essential for quantum computers.