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Topological Quantum Computing
Open Quantum Systems Decoherence
Fidelity susceptibility, scaling, and universality in quantum critical phenomena
arXiv
Authors: Shi-Jian Gu, Ho-Man Kwok, Wen-Qiang Ning, Hai-Qing Lin
Year
2007
Paper ID
49934
Status
Preprint
Abstract Read
~2 min
Abstract Words
48
Citations
N/A
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.
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- 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...
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