[Seminar] [Category and Topological Order Seminar] Isomorphic operator algebra and holographic equivalent symmetry-清华大学求真书院

研讨班

首页 > 书院学术 > 至美数学 > 研讨班

[Seminar] [Category and Topological Order Seminar] Isomorphic operator algebra and holographic equivalent symmetry

来源： 03-09

时间：2022/3/9 9:00 -10:30 周三

地点：Tencent 451 639 620

组织者：郑浩

主讲人：文小刚

摘要:

Symmetry is really determined by the algebra of local symmetric operators. Such an operator algebra is described by a braided fusion higher category. So a symmetry is really a topological order in one higher dimension. This point of view reveals that many seemingly different (anomalous) symmetries are actually equivalent.

返回顶部

[Seminar] [Category and Topological Order Seminar] Enforced symmetry breaking by invertible topological order
主讲人：王晨杰（香港大学）组织者：郑浩时间：13:30 -15:00 Wednesday, 2022/3/23地点：Tencent 660 7557 3050摘要:It is well known that two-dimensional Chern insulator must break the time reversal symmetry, as manifested by the appearance of chiral edge modes on an open boundary. Such an incompatibility between topological order and symmetry can occur more generally. In this talk, I will disc...
View more
Chiral topologically ordered states on a lattice from vertex operator algebra
AbstractI will describe a certain class of short-range correlated pure states of 2d lattice systems naturally associated with a unitary rational vertex operator algebra. I will argue that such states realize the chiral topological order associated with this vertex algebra. The construction provides a natural way to insert anyons and compute certain topological invariants. It also gives candidat...
View more

书院学术

[Seminar] [Category and Topological Order Seminar] Isomorphic operator algebra and holographic equivalent symmetry

[Seminar] [Category and Topological Order Seminar] Enforced symmetry breaking by invertible topological order

Chiral topologically ordered states on a lattice from vertex operator algebra

友情链接 HYPERLINK：