【就业宣讲交流会】20250326 香港科技大学物理系 [2025-03-17]

时间：3月26日16:00

地点：东区物质科研楼C-601

第一部分：学术报告

Transition out of quantum Hall phases and signature from density wave halo around anyons

Motivated by the experimental breakthrough in Moire systems and 2D materials, we discuss quantum Ginzburg-Landau theory for transition between fractional quantum Hall and density wave insulators.  The fractional filling plays key role and the vortices carry projective momenta resulting in the charge density wave. A direct consequence from the critical theory is that anyons nucleate charge density wave halo as one approaches the critical point. This could be measured through STM and is a direct way to probe charge fractionalization.

ref: Physical Review B 109 (8), 085143; Physical Review B 110 (8), 085120 (2024) (Editor’s suggestions)

报告人: Xue-Yang Song obtained her PhD in theoretical condensed matter in 2021, working with Ashvin Vishwanath and was a Moore postdoctoral fellow at MIT. She studies strongly correlated matter that shows emergent quantum phenomena like fractionally charged excitations and high-temperature superconductivity. She is interested in both developing formal theories and making connections to realistic solid state or synthetic systems.

第二部分：

香港科技大学物理系博士招生宣讲