Research

I am currently working on problems related to quantum signal processing, which can be used to design efficient quantum circuit for performing a wide range of computational tasks on quantum computers.

Contact

email: jiasu@berkeley.edu
office: 1097 Evans hall
office hour: by appointment

Publication and Preprints

Robust iterative method for symmetric quantum signal processing in all parameter regimes, submitted
- arXiv:2307.12468
- with Yulong Dong, Lin Lin and Hongkang Ni
Infinite quantum signal processing, submitted
- arXiv:2209.10162
- with Yulong Dong, Lin Lin and Hongkang Ni
Efficient quantum algorithm for nonlinear reaction-diffusion equations and energy estimation
- Commun. Math. Phys. 404, 963–1020 (2023)
- with Dong An, Di Fang, Stephen Jordan, Jin-Peng Liu and Guang Hao Low
On the energy landscape of symmetric quantum signal processing
- Quantum 6, 850 (2022)
- with Yulong Dong and Lin Lin
Quantum-accelerated multilevel Monte Carlo methods for stochastic differential equations in mathematical finance
- Quantum 5, 481 (2021)
- with Dong An, Noah Linden, Jin-Peng Liu, Ashley Montanaro and Changpeng Shao

Software

The QSPPack is a software package for efficiently obtaining quantum phase factors for quantum signal progressing (QSP) and quantum singular value transformations.

Presentations

Mathematical and Computational Challenges in Quantum Computing, IPAM, Los Angeles, Sept 2023
- Long participant
IEEE Quantum Week, Quantum Algorithms for Financial Applications, Denver, Sept 2022
- Title: Quantum-accelerated multilevel Monte Carlo methods, talk
Quantum information processing (QIP), LA, March 2022
- Title: On the energy landscape of symmetric quantum signal processing, poster
SIAM-LA21 minisymposium “Quantum Numerical Linear Algebra”, Online, May 2021
- Title: Energy Landscape of Optimizing Symmetric PhaseFactors in Quantum Signal Processing, talk