Infinite-time Average of Local Fields in an Integrable Quantum Field Theory after a Quantum Quench
Statistical Mechanics
2015-06-16 v1 High Energy Physics - Theory
Abstract
The infinite-time average of the expectation values of local fields of any interacting quantum theory after a global quench process are key quantities for matching theoretical and experimental results. For quantum integrable field theories, we show that they can be obtained by an ensemble average that employs a particular limit of the Form Factors of local fields and quantities extracted by the Generalized Bethe Ansatz.
Keywords
Cite
@article{arxiv.1308.4551,
title = {Infinite-time Average of Local Fields in an Integrable Quantum Field Theory after a Quantum Quench},
author = {Giuseppe Mussardo},
journal= {arXiv preprint arXiv:1308.4551},
year = {2015}
}
Comments
11 pages, 2 figures, to appear in Physical Review Letters