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arXiv · cond-mat/0211338

Russian Doll Renormalization Group and Superconductivity

Andre LeClair·Jose Maria Roman·German Sierra
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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.

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Andre LeClair, Jose Maria Roman, German Sierra. 2002-11-15. Russian Doll Renormalization Group and Superconductivity. https://doi.org/10.1103/physrevb.69.020505

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