Fidelity susceptibility, scaling, and universality in quantum critical phenomena

Abstract

We study fidelity susceptibility in one-dimensional asymmetric Hubbard model, and show that the fidelity susceptibility can be used to identify the universality class of the quantum phase transitions in this model. The critical exponents are found to be 0 and 2 for cases of half-filling and away from half-filling respectively.

arXiv comment4 pages, 4 figures

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