QUANTUM MATERIALS AND DEVICES SEMINARS: Quantum metric in Hermitian and pseudo-Hermitian systems
DIPC Seminars
- Speaker
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Giandomenico Palumbo, Dublin Institute for Advanced Studies (DIAS), Republic of Ireland
- When
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2021/10/13
17:00 - Place
- Online Seminar, Donostia International Physics Center
- Add to calendar
-
iCal
In the first part of my talk, I will introduce and explain the main features
of the quantum metric, which is a gauge-invariant geometric tensor that arises
from the band structure of lattice models. I will show that it plays an
important role in superconducting and topological systems in two dimensions
and in the semiclassical dynamics of wave-packets. Importantly, this quantity
has been recently measured in several synthetic-matter experiments. In the
second part of the talk, I will present my original contributions to the
field, by discussing the role of the quantum metric in three-dimensional
Hermitian topological semimetals and in gapped pseudo-Hermitian phases.
The latter are non-Hermitian models that are characterised by real energy
spectra and can describe suitable quantum dissipative systems.
host: Miguel A. Cazalilla
REGISTRATION REQUIRED
ZOOM: https://dipc-
org.zoom.us/meeting/register/tZAqceGqrzMqE9fPWdhzaKxoIscCspVlFJ4Y