Coupled Electrons and Pair Fluctuations in Two Dimensions: A Transition to Superconductivity in a Conserving Approximation
- 12 January 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 80 (2) , 373-376
- https://doi.org/10.1103/physrevlett.80.373
Abstract
We report a superconducting transition in the fully conserving fluctuation exchange approximation for a two-dimensional attractive Hubbard model. The transition temperature agrees well with quantum Monte Carlo calculations, but the superfluid density and specific heat near have anomalous temperature dependences for lattice sizes up to .
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