Chuanqi Xu

Chuanqi Xu

Ph.D. Student

Yale University


I am a PhD student at Yale University, and my research interests lie in quantum computing and computer security. I am currently working on quantum computer security, where I design attack and defense mechanisms on quantum computers and quantum cloud providers. I am also working on RTL design (Verilog) targeting FPGAs, where I implement Post-Quantum Cryptography (PQC) schemes that are secure under both classical and quantum computer attacks.

My Chinese name is 许传奇. The English translation of my Chinese first name is legend. If you are not sure about the pronunciation, you can call me legend :)

  • Quantum Computing
  • Computer Security
  • Post-Quantum Cryptography
  • PhD in Electrical Engineering, 2026 (expected)

    Yale University

  • BSc in Applied Physics, 2020

    University of Sciecne and Technology of China



Yale University
Research Assistant
Sep 2020 – Present New Haven, CT, USA
  • Led multi-year research projects focused on improving the security and privacy of quantum computing.
  • Gained expertise in quantum and cloud computing, such as IBM Cloud, Amazon Web Services, and Microsoft Azure.
  • Collaborated with faculties, students, and researchers from Yale, MIT, Princeton, Technology Innovation Institute, etc.
  • Published and presented research findings at top peer-reviewed conferences, workshops, and seminars.
University of Science and Technology of China
Research Assistant
Sep 2018 – Jun 2020 Hefei, Anhui, China
  • Organized the research agenda, coordinated with faculties and team members, experimented on condensed matter physics, and received the Second Prize in USTC Research-Oriented Physics Experimental Contest.
  • Collaborated with PhDs and postdocs with first-principles calculations and submitted the paper to a research journal.

Recent Publications

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(2024). A Thorough Study of State Leakage Mitigation in Quantum Computing with One-Time Pad. IEEE International Symposium on Hardware Oriented Security and Trust (HOST).

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(2023). Exploration of Power Side-Channel Vulnerabilities in Quantum Computer Controllers. ACM SIGSAC Conference on Computer and Communications Security (CCS).

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(2023). Securing NISQ Quantum Computer Reset Operations Against Higher Energy State Attacks. ACM SIGSAC Conference on Computer and Communications Security (CCS).

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(2023). A Quantum Computer Trusted Execution Environment. IEEE Computer Architecture Letters.

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(2023). Classification of Quantum Computer Fault Injection Attacks. arXiv.

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(2023). Long-Term Analysis of the Dependability of Cloud-based NISQ Quantum Computers. International Conference on Availability, Reliability and Security (ARES).

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(2023). Fingerprinting Quantum Computer Equipment. Great Lakes Symposium on VLSI (GLSVLSI).

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(2023). Design of Quantum Computer Antivirus. IEEE International Symposium on Hardware Oriented Security and Trust (HOST).

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(2022). Fast and Efficient Hardware Implementation of HQC. Cryptology ePrint Archive.

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(2022). Towards an Antivirus for Quantum Computers. IEEE International Symposium on Hardware Oriented Security and Trust (HOST).

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Talk: Long-Term Analysis of the Dependability of Cloud-based NISQ Quantum Computers
Talk: Fingerprinting Quantum Computer Equipment
Poster: Exploration of Quantum Computer Power Side-Channels
Poster: Quantum Computer Antivirus


The Japanese-Language Proficiency Test, or JLPT, is a standardized criterion-referenced test to evaluate and certify Japanese language proficiency for non-native speakers, covering language knowledge, reading ability, and listening ability.
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The Qiskit advocate program is a global program that provides support to the individuals who actively contribute to the Qiskit Community. Qiskit advocates are some of the finest minds in quantum computing, all over the world.
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An IBM Qiskit Developer is an individual who demonstrates fundamental knowledge of quantum computing concepts and is able to express them using the Qiskit open source software development kit (SDK). They have experience using the Qiskit SDK from the Python programming language to create and execute quantum computing programs on IBM Quantum computers and simulators.
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The Qiskit Global Summer School 2023 is a two-week intensive summer program designed to empower the quantum researchers and developers of tomorrow with the know-how to explore the world of quantum computing, as well as refresh and sharpen the industry professional’s skills. [My Code]
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This year’s Challenge focuses on Dynamic Circuits, a technology that makes it easier to run more advanced quantum algorithms. [My Code]
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PennyLane Code Camp Certificate
The PennyLane Code Camp was a 3-week event held in November 2022 where participants competed individually or as a team to tackle 15 increasingly-difficult quantum computing coding challenges, include 5 different problems: differentiable ZNE, Fourier spectrum of quantum models, gradients, quantum transforms and noise, and universality. [My Code]
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Introduction to Qiskit Runtime Sampler and Estimator. In addition, apply them to quantum kernel learning, quantum optimization, and quantum chemistry. [My Code]
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