Metallic transport of hard-core bosons

Sauri Bhattacharyya, Ayush De, Snir Gazit, Assa Auerbach

Research output: Contribution to journalArticlepeer-review

Abstract

Conductivities and Hall coefficients of two-dimensional hard-core bosons (HCB) are calculated using the thermodynamic expansions of Kubo formulas. At temperatures above the superfluid transition, the resistivity rises linearly and is weakly dependent on boson filling. The zeroth-order Hall coefficient diverges toward zero and unit fillings, and reverses its sign at half filling. The correction terms, which are calculated up to fourth (Krylov) orders, do not alter this behavior. The high temperature thermal Hall coefficient is reversed relative to the electric Hall coefficient. We discuss relevance of HCB transport to the metallic state of short coherence length superconductors.

Original languageAmerican English
Article number035117
JournalPhysical Review B
Volume109
Issue number3
DOIs
StatePublished - 15 Jan 2024

Bibliographical note

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© 2024 American Physical Society.

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