2 papers
cond-mat.str-el2026
Entanglement negativity in decohered topological states
Kang-Le Cai, Meng Cheng
We investigate universal entanglement signatures of mixed-state phases obtained by decohering pure-state topological order (TO), focusing on topological corrections to logarithmic…
cond-mat.str-el2024
Corner Charge Fluctuations and Many-Body Quantum Geometry
Xiao-Chuan Wu, Kang-Le Cai, Meng Cheng +1
In many-body systems with U(1) global symmetry, the charge fluctuations in a subregion reveal important insights into entanglement and other global properties. For subregions with…