Quantum geometry of the parameter space: a proposal for curved systems

• URL: http://arxiv.org/abs/2403.09804v1
• Date: Thu, 14 Mar 2024 18:51:26 GMT
• Title: Quantum geometry of the parameter space: a proposal for curved systems
• Authors: Joshua Davy-Castillo, Javier A. Cano-Arango, Sergio B. Juárez, Joan A. Austrich-Olivares, J. David Vergara,
• Abstract summary: We introduce an equivalent definition that generalizes the Zanardi, et al, formulation of the quantum geometric tensor. The parameter-dependent metric modifies the behavior of both the quantum metric tensor and Berry curvature in a purely geometric way.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, we extend the quantum geometric tensor for parameter-dependent curved spaces to higher dimensions, and introduce an equivalent definition that generalizes the Zanardi, et al, formulation of the tensor. The parameter-dependent metric modifies the behavior of both the quantum metric tensor and Berry curvature in a purely geometric way. Our focus is on understanding the distinctions in higher dimensions that emerge when using the generalized tensor compared to the conventional one. Through a comparative analysis, illustrated with examples in two dimensions, we highlight unique quantum geometric properties for both the quantum metric tensor and the Berry curvature. Additionally, we explore differences between analytical and perturbative approaches in solving the problems.

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