Spontaneous and explicit parity-time-symmetry breaking in drift-wave instabilities

Qin, Hong; Fu, Yichen; Glasser, Alexander S.; Yahalom, Asher

doi:10.1103/physreve.104.015215

Title: Spontaneous and explicit parity-time-symmetry breaking in drift-wave instabilities

Journal Article · 28 July 2021 · Physical Review E

DOI: https://doi.org/10.1103/physreve.104.015215 · OSTI ID:1818873

^[1]; Fu, Yichen ^[1];

^[1];

^[2]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Ariel Univ. (Israel); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

A method of parity-time- (PT) symmetry analysis is introduced to study the high-dimensional, complicated parameter space of drift-wave instabilities. Here, we show that spontaneous PT-symmetry breaking leads to the ion temperature gradient instability of drift waves, and the collisional instability is the result of explicit PT-symmetry breaking. A new unstable drift wave induced by finite collisionality is identified. It is also found that gradients of ion temperature and density can destabilize the ion cyclotron waves when PT symmetry is explicitly broken by a finite collisionality.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1818873

Journal Information:: Physical Review E, Journal Name: Physical Review E Journal Issue: 1 Vol. 104; ISSN 2470-0045

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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