PSFC Seminar: Yuan Shi
Thursday, September 09, 2021 at 3:00pm to 4:00pm
Virtual EventYuan Shi, Lawrence Livermore National Laboratory
Using quantum computers to simulate a toy problem of laser-plasma interactions
Quantum computing may lead to game-changing capabilities for science and technology. However, many practical problems are classical, and exactly how quantum systems can be used to solve classical problems remains an open question. Moreover, for plasma physics, many problems are nonlinear, whereas quantum computers are designed to carry out unitary evolution in Hilbert spaces, which are fundamentally linear. In this seminar, I will present the first results using real quantum hardware to simulate a toy problem that is relevant to laser-plasma interactions. A generally applicable algorithm is derived, which encode three-wave interactions on quantum hardware efficiently. The algorithm is implemented using two compilation approaches. First, each simulation step is compiled as a sequence of standard gates. Using this approach, ~10 simulation steps can be carried out before results are corrupted by decoherence. Second, each simulation step is compiled as a single customized gate, which is realized using optimal control. Using this approach, the simulation depth is extended to ~100. Our results highlight the advantage of using customized gates on noisy intermediate-scale quantum computers. The generalized nonlinear gates are potentially useful building blocks for solving a large class of problems in plasma/fluid dynamics, nonlinear optics, and lattice gauge theories on quantum computers.
- Event Type
- Events By Interest
- Events By Audience
- Events By School
- Website
- Department
- Plasma Science and Fusion Center
- Contact Email
- Add to my calendar
Recent Activity
No recent activity