Three Body bound-states and the development of odd frequency pairing

Details Three Body bound-states and the development of odd frequency pairing Three Body bound-states and the development of odd frequency pairing

1994-06-21

arxiv.org/abs/cond-mat/9406085v1

Physics

Condensed Matter

Scientific paper

10.1103/PhysRevLett.74.1653

We propose that the development of odd-frequency superconductivity is driven by the collective formation of neutral three body bound-states. Using a three-body bound-state ansatz we develop a mean-field theory for odd-frequency pairing within the Kondo Lattice model. Three body bound-state formation leads to the formation of a gapless band of fermions with a neutral, spinless Fermi surface. We discuss the low energy excitations of these modes, suggesting them as a possible explanation for the absence of anisotropy in the thermal conductivity of heavy fermion superconductors.

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