Work

Asymmetric-hopping effective theory of current-carrying bulk steady states and their effective temperature

Year: 2026

Type: article

Abstract: Current-induced phenomena are often obscured by Joule heating, and their steady states are difficult to analyze in large open systems. We introduce a translationally invariant asymmetric-hopping model as an effective bulk description of boundary-driven systems under current. In a minimal case, it corresponds to an open-system Hatano--Nelson model. In a minimal noninteracting realization, we find that the effective temperature rises linearly with current density in the weak-current regime. The model provides a useful tool for separating intrinsic current-induced effects from heating.

Source: Physical review. B./Physical review. B

DOI: 10.1103/5wkm-y9lk

Author: Yoshihiro Michishita

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7160925749

FWCI:

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Related to: 10