Tue April 24, 2018 4:00 pm

Counter-diabatic driving: from fast state preparation to fighting dissipation

Location:Harvard Jefferson 250
Dr. Anatoli Polkovnikov, Boston University
Ten Minute Talk:"Current instability in a driven 2d electron liquid probed by nanoscale magnetometry" by Javier Sanchez-Yamagishi

In this talk I will discuss recent ideas originally due to M. Demirplak and S. A. Rice (2003) and M. Berry (2009) of how one can design protocols allowing the system to follow adiabatically a desired state without usual slow speed limitations. I will discuss a general approach for finding such protocols in both simple and complex many-particle systems. In particular, I will show that Floquet engineering can be used as a very efficient tool for designing counter-diabatic driving. I will discuss several examples, which are relevant to cold atom systems. In the end of the talk I will discuss connections of counter-diabatic (and closely related fast-forward) protocols to quantum speed limits and quantum information geometry.

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