3 papers
cond-mat.str-el2026
Detecting Higher Berry Phase via Boundary Scattering
Chih-Yu Lo, Xueda Wen
Higher Berry phase has recently been proposed to study the topology of the space of gapped many-body quantum systems. In this work, we develop a boundary-scattering approach to det…
cond-mat.str-el2024
Towards a Topological Proof of the Strong Subadditivity
Chih-Yu Lo, Po-Yao Chang
Topological entanglement entropy (TEE) represents an intrinsic contribution to the entanglement entropy (EE) in topologically ordered systems. In quantum information theory, strong…
cond-mat.str-el2023
Topological entanglement entropy for torus knot bipartitions and the Verlinde-like formulas
Chih-Yu Lo, Po-Yao Chang
The topological Rényi and entanglement entropies depend on the bipartition of the manifold and the choice of the ground states. However, these entanglement quantities remain invari…