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Updated: Apr 18, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
Entanglement entropy flow and the Ward identity
Vladimir Rosenhaus1, Michael Smolkin2
1Center for Theoretical Physics and Department of Physics, University of California, Berkeley, California 94720, USA and Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA.
Abstract:
We derive differential equations for the flow of entanglement entropy as a function of the metric and the couplings of the theory. The variation of the universal part of entanglement entropy under a local Weyl transformation is related to the variation under a local change in the couplings. We show that this relation is, in fact, equivalent to the trace Ward identity. As a concrete application of our formalism, we express the entanglement entropy for massive free fields as a two-point function of the energy-momentum tensor.
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