Hi! This is Sunny, I am a graduate student at MIT advised by Professor Peter Shor and Anand Natarajan. My research is in quantum computation, with a focus in quantum error correction. I believe quantum computational power is a fundamental new resource bestowed to us by nature, and quantum error correction is the procedure that refines this raw resource for use in applications. I hope my work contributes to the constructions and later improvements of truly fault-tolerant, large-scale quantum computers in not-too-many decades.
Prior to grad school I was an undergrad at CMU. I worked in graph algorithms with Professor Anupam Gupta and Jason Li, and combinatorics with Professor Boris Bukh and Michael Tait.
Talks and Travel
- In Fall 2024, I helped organize a reading group on Quantum Fault-Tolerance with Rachel Zhang, Adam Wills and Vinod Vaikuntanathan. We recently posted our paper, Quantum Codes with Addressable and Transversal Non-Clifford Gates, to arXiv.
- I presented a recent work with IBM on Improved QLDPC Surgery: Logical Measurements and Bridging Codes at the Fault-Tolerant Quantum Technologies Workshop at Benasque, Spain. Here are a few photos of the mountain town of Benasque. I also presented this work at MIT, Harvard and Ohio State University. I will present this work at QIP 2025.
- I presented our work on Single-shot decoding of good quantum LDPC codes at TQC 2024 hosted in Okinawa, Japan. Here are some photos of Japan.
- I gave a guest lecture at UCLA on An Introduction to Quantum LDPC Codes in March 2024, hosted by Professor Jens Palsberg.
- I presented our work with IBM on Quantum Locally Testable Code with Constant Soundness at QIP 2023 in Gent, Belgium. Here are some photos of the beautiful city of Gent. I also presented this work at MIT, Tufts, and IBM Yorktown.
- In Summer 2023, I attended the Quantum Summer Cluster Workshop at Simons Institute.
- In Spring 2022, I helped organize a reading group on Asymptotically Good QLDPC Codes with Eugene Tang and Anand Natarajan.
Experiences
- I was a summer intern at QuEra in 2024. We recently posted our paper, Experimental Demonstration of Logical Magic State Distillation, to arXiv.
- In Spring 2024, I attended the Quantum Algorithms, Complexity, and Fault Tolerance Workshop, hosted by Simons Institute at UC Berkeley.
- I was a summer intern at IBM Quantum in 2022 and 2023.
- In Fall 2022, I was a TA for Peter Shor’s course on Quantum Computation.
Publications
Quantum
Quantum Codes with Addressable and Transversal Non-Clifford Gates, Feb 2025 Zhiyang He, Vinod Vaikuntanathan, Adam Wills, Rachel Yun Zhang. [arxiv]
Experimental Demonstration of Logical Magic State Distillation, Dec 2024
QuEra Team and Collaborators.
[arXiv], [Blog post by QuEra]Permutation gates in the third level of the Clifford hierarchy, Oct 2024
Zhiyang He, Luke Robitaille, Xinyu Tan. [arXiv]Improved QLDPC Surgery: Logical Measurements and Bridging Codes, July 2024
Andrew Cross, Zhiyang He, Patrick Rall, Theodore Yoder.
QIP 2025. Voted talk at FTQT 2024. [arXiv]Single-shot decoding of good quantum LDPC codes, June 2023
Shouzhen Gu, Eugene Tang, Libor Caha, Shin Ho Choe, Zhiyang He, Aleksander Kubica.
QEC 2023, TQC 2024.
Talk at Advances in Quantum Coding Theory at Simons Institute.
Communications in Mathematical Physics.
[arXiv], [Shouzhen’s Talk at Simons], [Talk at TQC], [Slides]Quantum Locally Testable Code with Constant Soundness, Sep 2022
Andrew Cross, Zhiyang He, Anand Natarajan, Mario Szegedy, Guanyu Zhu.
QIP 2023. Talk at IBM Yorktown.
Quantum. [arXiv], [Talk at QIP]
Graph Algorithms
Breaking the \(n^k\) Barrier for Minimum \(k\)-cut on Simple Graphs, Nov 2021
Zhiyang He, Jason Li.
STOC 2022. [arXiv], [Talk at STOC]Near-linear-time, Optimal Vertex Cut Sparsifier in Directed Acyclic Graphs, Nov 2020
Zhiyang He, Jason Li, Magnus Wahlström.
European Symposium on Algorithms (ESA) 2021, Best Paper Award. [arXiv]