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Center for Astrophysics Research and Technologies Seminar Series Information


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Symmetry Protected Topological Order in Open Quantum Systems

Friday January 14, 2022
11:00 am

 Presenter:  Alex Turzillo
 Series:  CQuIC Seminars
 Abstract:  I will discuss recent work that systematically investigates the robustness of symmetry protected topological (SPT) order in open quantum systems by studying the evolution of string order parameters and other probes under noisy channels. It is found that one-dimensional SPT order is robust against noisy couplings to the environment that satisfy a strong symmetry condition, while it is destabilized by noise that satisfies only a weak symmetry condition, which generalizes the notion of symmetry for closed systems. I will also highlight some future directions of this line of research.
 Location:  Zoom

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