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Sprache(n):
Datum:
2023-06-26
Publikationsstatus:
Online veröffentlicht
Seiten:
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Ort, Verlag, Ausgabe:
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Inhaltsverzeichnis:
The emergence of chiral anomaly entails various fascinating phenomena such as anomalous quan- tum Hall effect and chiral magnetic effect in different branches of (non-)Hermitian physics. While in the single-particle picture, anomalous currents merely appear due to the coupling of massless parti- cles with background fields, many-body interactions can also be responsible for anomalous transport in interacting systems. In this Letter, we study anomalous chiral currents in systems where inter- acting massless fermions with complex Fermi velocities are coupled to complex gauge fields. Our results reveal that incorporating non-Hermiticity and many-body interactions gives rise to addi- tional terms in anomalous relations beyond their Hermitian counterparts. We further present that many-body corrections in the subsequent non-Hermitian chiral magnetic field or anomalous Hall effect are nonvanishing in nonequilibrium or inhomogeneous systems. Our results advance efforts in understanding the anomalous transport in interacting non-Hermitian systems.
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Art des Abschluß:
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