Spectroscopy of Matter Near Criticality

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dc.creatorBernevig, B. A.
dc.creatorGiuliano, D.
dc.creatorLaughlin, R. B.
dc.date2000-04-18
dc.date.accessioned2026-07-07T02:37:24Z
dc.date.available2026-07-07T02:37:24Z
dc.descriptionWe propose that the finite-frequency susceptibility of matter near a class of zero-temperature phase transition exhibits distinctive excitonic structure similar to meson resonances. The specific case of a Landau level undergoing a transition to antiferromagnetism is considered as a prototype. A physical analogy is drawn between the behavior calculated for such systems by epsilon-expansion techniques and the behavior of 1-dimensional spin chains calculated by exact diagonalization. It is proposed that the correct low-energy description of such critical points is a relativistic gauge theory in spin-fractionalized coordinates, and conversely that the application of gauge theories to solids amounts to perturbation theory about critical points.
dc.description4 pages of RevTeX, 4 eps figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0004291
dc.identifierhttp://arxiv.org/abs/cond-mat/0004291
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16276
dc.subjectSuperconductivity
dc.titleSpectroscopy of Matter Near Criticality
dc.typetext

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