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Evolution operators in conformal field theories and conformal mappings: the entanglement Hamiltonian, the sine-square deformation, and others
Xueda Wen, Shinsei Ryu, Andreas W. W. Ludwig
By making use of conformal mapping, we construct various time-evolution operators in (1+1) dimensional conformal field theories (CFTs), which take the form $\int dx\, f(x) \mathcal…
Edge theory approach to topological entanglement entropy, mutual information and entanglement negativity in Chern-Simons theories
Xueda Wen, Shunji Matsuura, Shinsei Ryu
We develop an approach based on edge theories to calculate the entanglement entropy and related quantities in (2+1)-dimensional topologically ordered phases. Our approach is comple…
Charged Topological Entanglement Entropy
Shunji Matsuura, Xueda Wen, Ling-Yan Hung +1
A charged entanglement entropy is a new measure which probes quantum entanglement between different charge sectors. We study symmetry protected topological (SPT) phases in 2+1 dime…