Toward quantum simulations of sphaleron dynamics at colliders

15 Jul 2026, 16:40
12m
深圳厅 (2号楼二楼)

深圳厅

2号楼二楼

Speaker

昊 ZHANG (Institute of High Energy Physics, Chinese Academy of Sciences)

Description

Sphaleron dynamics in the Standard Model at high-energy particle collisions remains experimentally unobserved, with theoretical predictions hindered by its nonperturbative real-time nature. In this work, we investigate a quantum simulation approach to this challenge. Taking the 1+1D $O(3)$ nonlinear $\sigma$-model as a protocol towards studying dynamics of the sphaleron in electroweak theory, we identify the sphaleron configuration and establish lattice parameters that reproduce continuum sphaleron energies with controlled precision. We then develop quantum algorithms to simulate sphaleron evolutions where quantum effects can be included. This work lays the ground to establish quantum simulations for studying the interaction between classical topological objects and particles in the quantum field theory that are usually inaccessible to classical methods and computations.

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Primary author

昊 ZHANG (Institute of High Energy Physics, Chinese Academy of Sciences)

Co-authors

Prof. Ying-Ying Li (IHEP) Prof. Yandong Liu (Beijing Normal University) Dr Min Huang (高能所)

Presentation materials

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