Year: 2025
Type: article
Abstract: We present a quantum response approach to momentum-space gravity in dissipative multiband systems, which dresses both the quantum geometry-through an interband Weyl transformation-and the equations of motion. In addition to clarifying the roles of the contorsion and symplectic terms, we introduce the three-state quantum geometric tensor as a necessary element in the geometric classification of nonlinear responses and discuss the significance of the emergent terms from a gravitational point of view. We also identify a dual quantum geometric drag force in momentum space that provides an entropic source term for the multiband matrix of Einstein field equations.
Source: Physical Review Letters
DOI: 10.1103/t6nt-qzws
Author: M. Mehraeen
Institution: Case Western Reserve University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4414955244