【学术视频】Topological Physics in Quamtum Materials | 加州大学圣地亚哥分校尤亦庄

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题   目：Emmy Noether looks at DQCP报告人：尤亦庄单   位：University of California, San Diego时   间：2019-06-13地   点：清华大学

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报告提纲

• Noether theorem: emergent continuous symmetry→emergent conserved currents, which can be observed in the low-energy excitation spectrum.

• Apart from spin/boson systems, fermion systems can also have "DQCP" with emergent symmetry. Noether current provides a universal probe for these exotic quantum phase transitions.

• QMC+SAC allows us to explore spectral features of DQCP in both bosonic and (sign-problem-free) fremionic systems.

• The spectral features are relatively easy to probe by INS, RIXS or NMR, and are robust in a range of temperature, which may guide the search for DQCP in real materials.
  

个人简介

尤亦庄，2013年博士毕业于清华大学高等研究院；之后分别于美国加州大学圣塔芭芭拉分校和哈佛大学从事博士后研究。现为加州大学圣地亚哥分校助理教授。主要研究领域是拓扑量子物态（内禀拓扑序，对称性保护拓扑序，拓扑量子相变）；强关联多体系统（高温超导，自旋液体，冷原子体系）；量子纠缠和演生几何（张量网络，全息对偶）。

会议简介

Theme: IASTU Workshop on Topological Physics in Quamtum Materials

Date: July 10 to July 13, 2019

Organized by: Institute for Advanced Study, Tsinghua University

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