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Induced phase cloning in generalized BCS systems
Author(s) -
Ilieva N.,
Thirring W.
Publication year - 2010
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200900112
Subject(s) - superconductivity , formalism (music) , physics , theoretical physics , t duality , string theory , quantum mechanics , art , musical , visual arts
We discuss a possible mechanism for high‐temperature superconductivity, inspired by typically field‐theoretical arguments. We consider a BCS‐based model in the quasi‐spin formalism, with additional mean‐field dictated self‐interaction. We argue that the structure of the interaction provides a mechanism for control over directions of the spin S other than S z , which is being controlled via the conventional chemical potential. The phenomenon is possible in a KMS state, that is at non‐zero temperature. We also find the conditions for the appearance of a high‐T c superconducting phase. The symmetry properties of the model (ODLRO, supersymmetric equivalence in certain limits, both positive and negative values of the mean‐field coupling) are important in the context of the recent string‐theory inspired considerations of superconductivity within the AdS/CFT duality approach.