 |
|
|
| Symmetry, topology and their waltz in condensed matter systems |
| Institute of Theoretical Physics | | Chinese Academy of Sciences | | Key Laboratory of Theoretical Physics | | Lunch Seminar | | Title 题目 | Symmetry, topology and their waltz in condensed matter systems | | Speaker 报告人 | Prof. Xie Chen | | Affiliation 所在单位 | California Institute of Technology | | Date 日期 | 12月23日（星期五），中午12点 | | Venue 地点 | Conference Hall 322, ITP/理论物理所322报告厅 | | Abstract 摘要 | Condensed matter systems that look totally different on the microscopic scale can share surprisingly universal properties on the macroscopic level. For example, compounds with different components, different lattice structure and different forms of interaction can all be magnetic, or all become superconducting, or have exactly the same quantized conductivity. How to understand the emergence of universality out of the varied microscopic details? Two of the key guiding principles are symmetry and topology. Symmetry and topology are fundamental in shaping our current understanding of the condensed matter phase diagram. Moreover, the combination of the two leads to new excitement in the field. In this talk, we discuss how symmetry and topology can cooperate to generate exotic macroscopic properties beyond conventional understanding. Examples include symmetry protection of gapless edge excitation around a topological bulk and symmetry enrichment of fractional topological order. | | Contact Person 所内联系人 | 周森 | |
|
 |
|
