Two upcoming talks --- Janet Anders (Dec. 1) "Thermodynamics in the presence of coherences and strong coupling corrections" and Lukasz F. (Dec. 8) "How dynamical quantum memories forget"

[vadim.o...@gmail.com]

Dear colleagues,

ITS/GC is reviving its seminar sequence with two talks by Janet Anders (Dec. 1) and Lukasz Fidkowski (Dec. 8)

Please see https://itsatcuny.org/calendar/cmp120120 for Janet's seminar details.

The registration link is at the bottom of the page below the abstract, so please feel free to share— I’ve set it up so that registrants receive the Zoom link and password automatically. 

Lukasz's title and abstract can be found below.

here's the zoom link:

Launch Meeting - Zoom  

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.