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arXiv 2015-01-30 DOI 10.1103/PhysRevB.92.075108 0 views

Post measurement bipartite entanglement entropy in conformal field theories

Rajabpour, M. A.

Original · EN

We derive exact formulas for bipartite von Neumann entanglement entropy after partial projective local measurement in 1+1 dimensional conformal field theories with periodic and open boundary conditions. After defining the set up we will check numerically the validity of our results in the case of Klein-Gordon field theory (coupled harmonic oscillators) and spin-1/2 XX chain in a magnetic field. The agreement between analytical results and the numerical calculations is very good. We also find a lower bound for localizable entanglement in coupled harmonic oscillators.

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