Fidelity susceptibility of the quantum Ising model in the transverse field: The exact solution
Statistical Mechanics
2015-06-12 v2 Other Condensed Matter
Strongly Correlated Electrons
Quantum Physics
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.
Keywords
Cite
@article{arxiv.1212.1528,
title = {Fidelity susceptibility of the quantum Ising model in the transverse field: The exact solution},
author = {Bogdan Damski},
journal= {arXiv preprint arXiv:1212.1528},
year = {2015}
}
Comments
7 pages, 3 figures, minor changes, some references added