Characterizing many-body states at finite temperature via a Klein twist (Dr. H.-H. Tu)

  • Date: Mar 1, 2017
  • Time: 02:00 PM - 03:00 PM (Local Time Germany)
  • Speaker: Dr. Hong-Hao Tu
  • Faculty of Physics, Ludwig-Maximilians-Universität (LMU), Munich
  • Room: Herbert Walther Lecture Hall
  • Host: MPQ, Theory Division
In this talk, I will describe an ongoing work on how universal data for distinguishing different phases may be extracting from thermal states of quantum many-body systems.

This approach relies on a Klein bottle partition function (defined by twisting the usual partition function in imaginary-time axis) and is relevant for situations where non-chiral conformal field theories govern the bulk or edge physics (e.g. 1d critical states and 2d time-reversal invariant topological insulators). Benchmark results will be provided for several 1d critical models.

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