Low-dimensional BEC |
| |
Authors: | F. J. Sevilla M. Grether M. Fortes M. de Llano O. Rojo M. A. Solís A. A. Valladares |
| |
Affiliation: | (1) lnstituto de Física, UNAM, Apdo. Postal 20-364, 01000 México, DF, Mexico;(2) Facultad de Ciencias, UNAM, 04510 México, DF, Mexico;(3) lnstituto de Investigaciones en Materiales, UNAM, 04510 México, DF, Mexico;(4) PESTIC, Secretaría Académica & CINVESTAV, IPN, 04430 México, DF, Mexico |
| |
Abstract: | The Bose-Einstein condensation (BEC) temperature Tc of Cooper pairs (CPs) created from a general interfermion interaction is determined for a linear, as well as the usually assumed quadratic, energy vs center-of-mass momentum dispersion relation. This explicit Tc is then compared with a widely applied implicit one of Wen & Kan (1988) in d=2+ dimensions, for small , for a geometry of an infinite stack of parallel (e.g., copperoxygen) planes as in, say, a cuprate superconductor, and with a new result for linear-dispersion CPs. The implicit formula gives Tc values only slightly lower than those of the explicit formula for typical cuprate parameters. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|