arXiv:cond-mat/0211338·v1·Superconductivity
Russian Doll Renormalization Group and Superconductivity
Andre LeClair🇪🇸 · Jose Maria Roman🇪🇸 · German Sierra (IFT, CSIC-UAM, SPAIN)🇪🇸
Abstract
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.
Comments: 4 pages, 2 figs, RevTex4