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Exploring Ideas in Topological Quantum Phenomena: A Journey Through the SSH Model. 2
Journal
Resonance
ISSN
09718044
Date Issued
2022-11-01
Author(s)
Hegde, Anantha
Kumar, Adarsh
Agarwala, Adhip
Muralidharan, Bhaskaran
Abstract
Geared as an invitation for undergraduates, beginning graduate students, we present a pedagogical introduction to one-dimen- sional topological phases — in particular the Su-Schrieffer-Heeger model. In the process, we delve upon ideas of entangleme using the correlator method and the von-Neumann density-matrix method, geometric phase, polarization, transport signatures and the role of electron-electron interactions. Thro- ugh hands-on numerical experiments, whose codes are shared, we try to drive home the message why a program of simulating quantum electronics with topological toy models is the storehouse for discovering fantastic physics ideas.
Volume
27
Subjects