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FTheory: Some Pedestrian Remarks on Entanglement Entropy

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Mark Srednicki, UCSB
When
07 November 2014 from 10:00 AM to 11:30 AM
Where
320 Whitmore Lab
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Entanglement entropy arises in quantum field theory when the degrees of freedom inside one region of space are traced out, leaving the remaining system in a mixed state with a nonzero von Neumann entropy. In calculations of this entropy, there are subtleties related to boundary conditions on the surface dividing the two regions, and on the nature of the ultraviolet cutoff that is needed to render the entropy finite. I will explore these subtleties in some simple models.

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