Entanglement in a periodic quench

Details Entanglement in a periodic quench Entanglement in a periodic quench

2008-03-18

arxiv.org/abs/0803.2655v2

Ann. Phys. (Berlin) 17, 410 (2008)

Physics

Condensed Matter

Statistical Mechanics

19 pages, 12 figures, 5 references added

Scientific paper

10.1002/andp.200810299

We consider a chain of free electrons with periodically switched dimerization and study the entanglement entropy of a segment with the remainder of the system. We show that it evolves in a stepwise manner towards a value proportional to the length of the segment and displays in general slow oscillations. For particular quench periods and full dimerization an explicit solution is given. Relations to equilibrium lattice models are pointed out.

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