Dear quanta,
My student, Kevin Zatloukal, is visiting MIT through Wed afternoon. He is
in room 6-414, so feel free to say hello if you see him. He is interested
in, among other things, applying quantum computing to algebraic problems.
This fall he'll transfer to MIT EECS.
Also, there is a talk this Wednesday at 3pm (in 6C-442) in the
string/gravity seminar series that may be of interest to some of us.
Speaker: *Horacio Casini*, Centro Ato Mico Bariloche
Title: Physical entanglement entropy: relative entropy and mutual
information
Abstract: I will describe general facts about entanglement entropy in QFT
and discuss two different ways to get rid of the regularization
ambiguities, using mutual information and relative entropy. Then i will
show relative entropy gives a proof of a well defined version of the
Bekenstein bound, an offer a strong test to holographic entropy. It can
also be used to do "vacuum state tomography" from the entropy functional.
In a second part of my talk I will show mutual information can be used to
give a precise unambiguos definition of the central charge in the c-theorem
for d=3, which in principle can be computed using any regularization. I
will revise the proof of the c-theorem in terms of mutual information.
-aram
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