Papers › Evolution of entanglement after a local quench
Evolution of entanglement after a local quench
V. Eisler, I. Peschel
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We study free electrons on an infinite half-filled chain, starting in the ground state with a bond defect. We find a logarithmic increase of the entanglement entropy after the defect is removed, followed by a slow relaxation towards the value of the homogeneous chain. The coefficients depend continuously on the defect strength.
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