Reminder -- L. Fidkowski seminar tomorrow (Dec. 8) at noon

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vadim.o...@gmail.com

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Dec 7, 2020, 12:20:30 PM12/7/20
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Lukasz's title and abstract can be found below.
here's the zoom link:



Title: How dynamical quantum memories forget

Abstract: 

Making local measurements on an entangled quantum many-body state is expected to reduce quantum entanglement.  However, recently it was found that in the thermodynamic limit it is possible to robustly protect quantum entanglement from continuous local measurements.  I will discuss a simplified model of a repeatedly measured interacting many-body quantum system and show how it preserves entanglement up to time exponential in the number of degrees of freedom, after which the state purifies.  I will also show that in a model of free fermions, purification occurs in polynomial time, consistent with the idea that interactions are crucial for preserving the entanglement.

vadim.o...@gmail.com

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Dec 8, 2020, 11:58:48 AM12/8/20
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in case there are link issues, here it is again

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