2022
The Schroedinger Visiting Professor in 2022 was Prof. Shinsei Ryu (Princeton University, USA).
Dates of visit: May 22 - June 4, 2022 and June 19 - July 6, 2022
Host: Prof. Titus Neupert (UZH)
Schroedinger Lecture 2022: Fun with partial transpose
Download Poster (PDF, 181 KB)
Tuesday, May 24, 2022, 16:00 h (followed by an apéro in Foyer G)
Abstract: Developing a better understanding of emergent properties of complex many-body quantum systems remains an important challenge in various subfields of physics, such as condensed matter, nuclear, and high energy physics. For example, many-body quantum systems may exhibit a rich variety of exotic topological and dynamical behaviors. In this talk, I will describe how the quantum information theoretical operation called partial transpose can be used to study various properties of many-body quantum systems. For example, partial transpose is useful in detecting entanglement in mixed quantum states, In particular, entanglement negativity, a measure of quantum entanglement, can be defined by using partial transpose. Another use of partial transpose is to detect topological phases of matter, in particular those protected by time-reversal symmetry, such as topological insulators and topological superconductors. I will describe how we can define topological invariants in fully many-body setting by using partial transpose.
Additional lectures:
Lecture 1: Entanglement and topology in condensed matter systems
Monday, May 30, 2022, 10:30 h
Lecture 2: Quantum dynamics and entanglement measures
Thursday, June 2, 2022, 10:30 h
Location: ETH Hönggerberg, HIT E 41.1
