196 citations · 1.3k across the 35 of their papers we have counts for
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cond-mat.str-el2016★ 66 cited
Topological entanglement negativity in Chern-Simons theories
Xueda Wen, Po-Yao Chang, Shinsei Ryu
We study the topological entanglement negativity between two spatial regions in (2+1)-dimensional Chern-Simons gauge theories by using the replica trick and the surgery method. For…
cond-mat.str-el2016★ 89 cited
Möbius Kondo Insulators
Po-Yao Chang, Onur Erten, Piers Coleman
Heavy fermion materials have recently attracted attention for their potential to combine topological protection with strongly correlated electron physics. To date, the ideas of top…
cond-mat.stat-mech2016★ 31 cited
Entanglement negativity in free-fermion systems: An overlap matrix approach
Po-Yao Chang, Xueda Wen
In this paper, we calculate the entanglement negativity in free-fermion systems by use of the overlap matrices. For a tripartite system, if the ground state can be factored into tr…