TL;DR
This paper investigates how an anomalous term in the current affects the zero sound mode in a Fermi liquid subjected to a magnetic field, revealing modifications to its structure.
Contribution
It introduces the impact of the anomalous current term on zero sound modes in magnetic fields, extending previous theoretical models.
Findings
The anomalous term alters the zero sound dispersion relation.
Magnetic fields influence the zero sound mode structure.
Theoretical analysis of Fermi liquids with anomalous currents.
Abstract
We show that the anomalous term in the current, recently suggested by Son and Yamamoto, modifies the structure of the zero sound mode in the Fermi liquid in a magnetic field.
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