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arxiv: cond-mat/0211338 · v1 · submitted 2002-11-15 · ❄️ cond-mat.supr-con · cond-mat.str-el· hep-th· nucl-th

Russian Doll Renormalization Group and Superconductivity

classification ❄️ cond-mat.supr-con cond-mat.str-elhep-thnucl-th
keywords condensatesconstantcouplingcyclicdescribeddifferentdollenergy
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We show that an extension of the standard BCS Hamiltonian leads to an infinite number of condensates with different energy gaps and self-similar properties, described by a cyclic RG flow of the BCS coupling constant which returns to its original value after a finite RG time.

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Cited by 2 Pith papers

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  2. A rich structure of renormalization group flows for Higgs-like models in 4 dimensions

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    A two-Higgs-doublet model with SU(2)-based marginal operators produces unavoidable cyclic RG flows, pseudo-unitary behavior below pair-production threshold, and Russian Doll VEVs whose period is fixed by the Koide for...