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arXiv · 1212.1528

Fidelity susceptibility of the quantum Ising model in the transverse field: The exact solution

Bogdan Damski
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Abstract

We derive an exact closed-form expression for fidelity susceptibility of the quantum Ising model in the transverse field. We also establish an exact one-to-one correspondence between fidelity susceptibility in the ferromagnetic and paramagnetic phases of this model. Elegant summation formulas are obtained as a by-product of these studies.

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Bogdan Damski. 2013-04-16. Fidelity susceptibility of the quantum Ising model in the transverse field: The exact solution. https://doi.org/10.1103/physreve.87.052131

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