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The breaking of continuous scale invariance to discrete scale invariance: a universal quantum phase transition (1909.05505v1)
Published 12 Sep 2019 in cond-mat.mes-hall, math-ph, math.MP, and quant-ph
Abstract: We provide a review on the physics associated with phase transitions in which continuous scale invariance is broken into discrete scale invariance. The rich features of this transition characterized by the abrupt formation of a geometric ladder of eigenstates, low energy universality without fixed points, scale anomalies and Berezinskii-Kosterlitz-Thouless scaling is described. The important role of this transition in various celebrated single and many body quantum systems is discussed along with recent experimental realizations. Particular focus is devoted to a recent realization in graphene.
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