Biography
I am a PhD candidate at Yale University. My current research focuses on quantum computing and computer security, where I design novel attacks and defenses targeting quantum computers and quantum cloud providers. Specifically, my work explores security and privacy across the entire technology stack of quantum computers:
- Investigating vulnerabilities in quantum processors and qubit technologies.
- Developing secure and private quantum computer systems and architecture.
- Ensuring the security of quantum algorithms, with a focus on quantum machine learning (QML).
Previously, I worked on RTL design (Verilog) for FPGAs, implementing Post-Quantum Cryptography (PQC) that is secure to both classical and quantum computer attacks.
I am actively seeking roles as a research scientist, software engineer, and quant researcher. I am broadly interested in developing systems and infrastructure, especially for ML/GenAI infrastructure and systems.
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 :)
Interests
- Quantum Computing
- Computer Security
- Quantum Machine Learning
Education
PhD in Electrical Engineering, 2025 (expected)
Yale University
BSc in Applied Physics, 2020
University of Science and Technology of China
Experience
Professional
Software Engineering Intern
Developed and improved machine learning infrastructure, systems, and models to enhance ads bidding.
Software Engineering Intern
Improved routing in the data center network interface, to enhance long-running tasks such as machine learning (ML) and large language model (LLM) training.
Research Assistant
- 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.
Recent Publications
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(2024).
Jailbreaking Quantum Computers.
arXiv (To appear at IEEE S&P 2025).
(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).
(2023).
Exploration of Power Side-Channel Vulnerabilities in Quantum Computer Controllers.
ACM SIGSAC Conference on Computer and Communications Security (CCS).
(2023).
Securing NISQ Quantum Computer Reset Operations Against Higher Energy State Attacks.
ACM SIGSAC Conference on Computer and Communications Security (CCS).
(2023).
A Quantum Computer Trusted Execution Environment.
IEEE Computer Architecture Letters.
(2023).
Classification of Quantum Computer Fault Injection Attacks.
arXiv.
(2023).
Long-Term Analysis of the Dependability of Cloud-based NISQ Quantum Computers.
International Conference on Availability, Reliability and Security (ARES).
(2023).
Fingerprinting Quantum Computer Equipment.
Great Lakes Symposium on VLSI (GLSVLSI).
(2023).
Design of Quantum Computer Antivirus.
IEEE International Symposium on Hardware Oriented Security and Trust (HOST).
(2023).
Universal Scaling between On-Site Coulomb Repulsion and Numbers of Core and Valence Electrons in Transition Metal Trichalcogenides.
Computer Physics Communications.
(2022).
Fast and Efficient Hardware Implementation of HQC.
Cryptology ePrint Archive.
(2022).
Towards an Antivirus for Quantum Computers.
IEEE International Symposium on Hardware Oriented Security and Trust (HOST).
Recent Posts
Accomplishments
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.
See certificate
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.
See certificateAn 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.
See certificateThe 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]
See certificateThis year’s Challenge focuses on Dynamic Circuits, a technology that makes it easier to run more advanced quantum algorithms. [My Code]
See certificate
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]
See certificateIntroduction to Qiskit Runtime Sampler and Estimator. In addition, apply them to quantum kernel learning, quantum optimization, and quantum chemistry. [My Code]
See certificateContact
- chuanqi.xu@yale.edu
- 10 Hillhouse Ave, New Haven, CT 06511
- Floor 5, Dunham Laboratory