Quantum geometrical effects in non-Hermitian systems
Montag A, Ozawa T (2026)
Publication Type: Journal article
Publication year: 2026
Journal
Book Volume: 8
Article Number: 013181
Journal Issue: 1
DOI: 10.1103/qb8s-9c6y
Abstract
We explore the relation between quantum geometry in non-Hermitian systems and physically measurable phenomena. We highlight various situations in which the behavior of a non-Hermitian system is best understood in terms of quantum geometry, namely, the notion of adiabatic potentials in non-Hermitian systems and the localization of Wannier states in periodic non-Hermitian systems. Further, we show that the non-Hermitian quantum metric appears in the response of the system upon time-periodic modulation, which one can use to experimentally measure the non-Hermitian quantum metric. We validate our results by providing numerical simulations of concrete exemplary systems.
Involved external institutions
Japan (JP)How to cite
APA:
Montag, A., & Ozawa, T. (2026). Quantum geometrical effects in non-Hermitian systems. Physical Review Research, 8(1). https://doi.org/10.1103/qb8s-9c6y
MLA:
Montag, Anton, and Tomoki Ozawa. "Quantum geometrical effects in non-Hermitian systems." Physical Review Research 8.1 (2026).
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