Note On The Dilaton Effective Action And Entanglement Entropy
Abstract
In this note we do the analysis of entanglement entropy more carefully when the nonconformal theory flows to a nontrivial IR fixed point. In particular we emphasize the role of the trace of the energymomentum tensor in these calculations. We also compare the current technique for evaluating the entanglement entropy, particularly the Green's function method for gaussian theories, with the dilaton effective action approach and show that they compute identical quantities. As a result of this, the dilaton effective action approach can be thought of as an extension of Green's function technique to interacting theories.
 Publication:

arXiv eprints
 Pub Date:
 June 2014
 arXiv:
 arXiv:1406.3038
 Bibcode:
 2014arXiv1406.3038B
 Keywords:

 High Energy Physics  Theory;
 Condensed Matter  Statistical Mechanics;
 Condensed Matter  Strongly Correlated Electrons
 EPrint:
 Latex, 9 Pages