Condensed Matter Theory Seminar: Hong-Hao Tu - “Hunting for Topologically Ordered Phases with Tensor Networks”

Event time: 
Thursday, February 23, 2023 - 1:00pm to 2:00pm
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217 Prospect Street
New Haven, CT 06511
Hong-Hao Tu - TU Dresden
Event description: 

In two dimensions, topologically ordered phases defined on a nontrivial manifold have degenerate ground states protected by a gap. However, it has been a nontrivial task to find these states in physically relevant microscopic Hamiltonians. In this talk I will discuss our progress on hunting for topologically ordered states with tensor network methods. The emphasis will be given to our recent result on the spin-1/2 kagome Heisenberg antiferromagnet, for which we provide strong evidence that its ground state is a chiral spin liquid with spontaneously broken time-reversal symmetry.
This talk will be given on Zoom: Passcode: 991612
Host: Meng Cheng (