From BCS to BEC Superconductivity: Spectroscopic Consequences
Superconductivity
2008-08-26 v1
Abstract
The evolution from BCS to BEC superconductivity in the s-wave and d-wave channels is analyzed at zero temperature for a two-dimensional superconductor. Spectroscopic quantities for s-wave and d-wave systems present fundamental differences when particle density and attraction strength are varied. A detailed analysis of single quasiparticle properties (excitation spectrum, momentum distribution, spectral function and density of states) indicates that the evolution of these spectroscopic quantities in the d-wave case is not smooth, unlike the situation encountered for the s-wave system.
Cite
@article{arxiv.cond-mat/9810370,
title = {From BCS to BEC Superconductivity: Spectroscopic Consequences},
author = {L. S. Borkowski and C. A. R. Sa de Melo},
journal= {arXiv preprint arXiv:cond-mat/9810370},
year = {2008}
}
Comments
4 pages, 5 epsf figures