Characterizing many-body states at finite temperature via a Klein twist (Dr. H.-H. Tu)
- Datum: 01.03.2017
- Uhrzeit: 14:00 - 15:00
- Vortragende(r): Dr. Hong-Hao Tu
- Faculty of Physics, Ludwig-Maximilians-Universität (LMU), Munich
- Raum: Herbert Walther Lecture Hall
- Gastgeber: 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.