%0 Journal Article %1 He2007Relativistic %A He, Lianyi %A Zhuang, Pengfei %D 2007 %K color\_superconductivity, crossover %R 10.1103/physrevd.76.056003 %T Relativistic BCS-BEC Crossover at Finite Temperature and Its Application to Color Superconductivity %U http://dx.doi.org/10.1103/physrevd.76.056003 %X The non-relativistic \$G\_0 G\$ formalism of BCS-BEC crossover at finite temperature is extended to relativistic fermion systems. The uncondensed pairs contribute a pseudogap to the fermion excitations. The theory recovers the BCS mean field approximation at zero temperature and the non-relativistic results in a proper limit. For massive fermions, when the coupling strength increases, there exist two crossovers from the weak coupling BCS superfluid to the non-relativistic BEC state and then to the relativistic BEC state. For color superconductivity at moderate baryon density, the matter is in the BCS-BEC crossover region, and the behavior of the pseudogap is quite similar to that found in high temperature superconductors.

@article{He2007Relativistic, abstract = {The non-relativistic \$G\_0 G\$ formalism of BCS-BEC crossover at finite temperature is extended to relativistic fermion systems. The uncondensed pairs contribute a pseudogap to the fermion excitations. The theory recovers the BCS mean field approximation at zero temperature and the non-relativistic results in a proper limit. For massive fermions, when the coupling strength increases, there exist two crossovers from the weak coupling BCS superfluid to the non-relativistic BEC state and then to the relativistic BEC state. For color superconductivity at moderate baryon density, the matter is in the BCS-BEC crossover region, and the behavior of the pseudogap is quite similar to that found in high temperature superconductors.}, added-at = {2014-01-09T15:14:33.000+0100}, archiveprefix = {arXiv}, author = {He, Lianyi and Zhuang, Pengfei}, biburl = {https://www.bibsonomy.org/bibtex/24a6a621f3d2bd4288f61d542a72d4736/jaspervh}, citeulike-article-id = {5732014}, citeulike-linkout-0 = {http://arxiv.org/abs/0705.1634}, citeulike-linkout-1 = {http://arxiv.org/pdf/0705.1634}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/physrevd.76.056003}, day = 12, doi = {10.1103/physrevd.76.056003}, eprint = {0705.1634}, interhash = {ec494321d67d1bbe49eb038eb9259acf}, intrahash = {4a6a621f3d2bd4288f61d542a72d4736}, keywords = {color\_superconductivity, crossover}, month = sep, posted-at = {2009-09-07 09:19:13}, priority = {2}, timestamp = {2014-01-09T15:14:33.000+0100}, title = {Relativistic BCS-BEC Crossover at Finite Temperature and Its Application to Color Superconductivity}, url = {http://dx.doi.org/10.1103/physrevd.76.056003}, year = 2007 }