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Title

The time-dependent correlation function of the Jordan–Wigner operator as a Fredholm determinant

Authors
Cheianov, V. V.
Published in Journal of statistical mechanics. 2009, vol. 2009, no. 07, P07035
Abstract We calculate a correlation function of the Jordan–Wigner operator in a class of free-fermion models formulated on an infinite one-dimensional lattice. We represent this function in terms of the determinant of an integrable Fredholm operator, convenient for analytic and numerical investigations. By using Wick's theorem, we avoid the form-factor summation customarily used in the literature for treating similar problems.
Keywords Correlation functions
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Research group Groupe Giamarchi
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ZVONAREV, Mikhail, CHEIANOV, V. V., GIAMARCHI, Thierry. The time-dependent correlation function of the Jordan–Wigner operator as a Fredholm determinant. In: Journal of Statistical Mechanics: Theory and Experiment, 2009, vol. 2009, n° 07, p. P07035. doi: 10.1088/1742-5468/2009/07/P07035 https://archive-ouverte.unige.ch/unige:36000

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Deposited on : 2014-04-28

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