题目:Designing Light in an Artificial Universe
嘉宾:闫寒 博士,东京大学助理教授
时间:2024年1月23日星期二10:00 am
地点:田家炳楼南205报告厅
邀请人:文强 副教授
Quantum spin ice (QSI) is a lattice spin-model realization of the full-fledged quantum electrodynamics including photons, electric charges and magnetic monopoles. As one of the most interesting quantum spin liquids, a significant amount of experimental and theoretical investigation has been done in this field. I will present an overview of the quantum spin ice physics and also discuss our recent ongoing work on how in the so-called dipole-octupole QSI, one can experimentally have clean control of the dynamics of its emergent QED, including transition between different symmetry-enriched phases, tuning the dispersion of photons and fine-structure constants etc. All of this can be achieved in one of the simplest experiments — turning on the external magnetic field in the right direction.
Biography:
Dr. Han Yan is an Assistant Professor at the University of Tokyo, Institute for Solid State Physics. He did his PhD at Okinawa Institute of Science and Technology and then became a Junior Fellow in Rice Academy at Rice University from 2021 to 2023. He joined the University of Tokyo in October 2023.He is interested in quantum many-body physics, especially their connection with high-energy theory.