24–29 Apr 2025
国科大杭州高等研究院 Hangzhou Institute for Advanced Study (UCAS)
Asia/Shanghai timezone

Towards a Quantum Simulation of Sphaleron Configuration

27 Apr 2025, 09:30
30m

Speaker

Prof. Hao Zhang (Theoretical Physics Division, Institute of High Energy Physics, Chinese Academy of Sciences)

Description

We revisited the sphaleron configuration in a 1+1-dimensional (1+1D) field theory model, achieved by introducing linear additional terms into the action of the $O(3)$ nonlinear $\sigma$-model. We discretize the Lagrangian of the aforementioned 1+1D model and construct a Hamiltonian representation based on unitary quantum gate forms, enabling the construction of quantum-simulated sphaleron. Subsequently, we devise a sophisticated adiabatic simulation method based on the field space properties of quantum-bits and the corresponding structure of the model field, obtaining the quantum-simulated 1D sphaleron states.

Author

Prof. Hao Zhang (Theoretical Physics Division, Institute of High Energy Physics, Chinese Academy of Sciences)

Presentation materials