Journal
PHYSICAL REVIEW E
Volume 87, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.87.052131
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Funding
- US Department of Energy
- Polish National Science Center [DEC-2011/01/B/ST3/00512]
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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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