Three-Body Bound States and the Development of Odd-Frequency Pairing
Authors:
- 27 February 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (9) , 1653-1656
Abstract
We propose that the development of odd-frequency superconductivity is driven by the growth of an anomalous three-body scattering amplitude. Using this as an ansatz we develop a mean-field theory for odd-frequency pairing within the Kondo lattice model. The three-body bound-state formation leads to the formation of a gapless band of strongly paired quasiparticles whose spin and charge coherence factors vanish linearly with energy. Possible links with heavy fermion superconductors are discussed.Keywords
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