Order-Parameter Correlation Functions in Quantum Critical Phenomena

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dc.creatorCha, Min-Chul
dc.creatorOrtiz, Gerardo
dc.date2007-07-03
dc.date.accessioned2026-07-07T08:13:53Z
dc.date.available2026-07-07T08:13:53Z
dc.descriptionWe investigate the functional form of the order-parameter (two-point) correlation function in quantum critical phenomena. Contrary to the common lore, when there is no particle-hole symmetry we find that the equal-time correlation function at criticality does not display a diverging correlation length. We illustrate our conclusions by Monte Carlo calculations of the quantum rotor model in $d=2$ space dimensions
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0707.0509
dc.identifierhttp://arxiv.org/abs/0707.0509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132932
dc.subjectStatistical Mechanics
dc.subjectStrongly Correlated Electrons
dc.titleOrder-Parameter Correlation Functions in Quantum Critical Phenomena
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