Entanglement Entropy in Non-Relativistic Field Theories

Details Entanglement Entropy in Non-Relativistic Field Theories Entanglement Entropy in Non-Relativistic Field Theories

2009-09-01

arxiv.org/abs/0909.0277v2

JHEP 1004:101,2010

Physics

High Energy Physics

High Energy Physics - Theory

4 pages; v2: discussion of interacting fields included

Scientific paper

10.1007/JHEP04(2010)101

We calculate entanglement entropy in a non-relativistic field theory described by the Schr\"odinger operator. We demonstrate that the entropy is characterized by i) the area law and ii) UV divergences that are identical to those in the relativistic field theory. These observations are further supported by a holographic consideration. We use the non-relativistic symmetry and completely specify entanglement entropy in large class of non-relativistic theories described by the field operators polynomial in derivatives. We suggest that the area law of the entropy can be tested in experiments with condensed matter systems such as liquid helium.

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