Correlation function (statistical mechanics): Difference between revisions

Revision as of 01:56, 3 November 2017

Revision as of 11:23, 26 January 2018

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===Radial distribution functions===

One common correlation function is the [[radial distribution function]] which is seen often in [[statistical mechanics]]. The correlation function can be calculated in exactly solvable models (one-dimensional Bose gas, spin chains, Hubbard model) by means of [[Quantum inverse scattering method]] and [[Bethe ansatz]]. In an isotropic XY model, time and temperature correlations were evaluated by Its, Korepin, Izergin & Slavnov.<ref>A.R. Its, V.e. Korepin, A.G. Izergin & N.A. Slavnov (2009) [httphttps://arxiv.org/pdf/0909.4751 Temperature Correlation of Quantum Spins] from [[arxiv.org]].</ref>

====Higher order correlation functions====