Measuring entanglement using quantum quenches

Details Measuring entanglement using quantum quenches Measuring entanglement using quantum quenches

2010-12-22

arxiv.org/abs/1012.5116v2

Phys.Rev.Lett.106:150404,2011

Physics

Condensed Matter

Statistical Mechanics

5 pages, 2 figures. v2: references added, minor text changes

Scientific paper

10.1103/PhysRevLett.106.150404

We show that block entanglement entropies in one-dimensional systems close to
a quantum critical point can in principle be measured in terms of the
population of low-lying energy levels following a certain type of local quantum
quench.

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