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Entanglement entropy after selective measurements in quantum chains
2016
Journal of High Energy Physics
We study bipartite post measurement entanglement entropy after selective measurements in quantum chains. We first study the quantity for the critical systems that can be described by conformal field theories. We find a connection between post measurement entanglement entropy and the Casimir energy of floating objects. Then we provide formulas for the post measurement entanglement entropy for open and finite temperature systems. We also comment on the Affleck-Ludwig boundary entropy in the
doi:10.1007/jhep12(2016)124
fatcat:5migjrx4hfglvchtc4k4cojuee