The Tc−nS relation for weakly interacting charged Bose fluids

✍ Scribed by Charles P. Enz; Zygmunt M. Galasiewicz

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 434 KB
• Volume: 214
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(93)90821-7

✦ Synopsis

The Tc-ns relation (Uemura plot) is calculated within statistical mechanics for the family of weakly repulsive Bose fluids parametrized by the sound velocity u or the interaction temperature Tt = rnu 2/k B. For u > 0 the degeneracy between superfluid (ns) and condensate (no) densities and between excitation (n~x) and normal (nn) densities is found to be lifted, n> ns> no, ne~ > n. = n -ns. Defining Tc by nc ( T~ ) = 0 we obtain n~ (T~) by inverting the relation Tt ( T~ ). We find upward bent curves T¢ ( ns ) with slopes which, for electrons, compare reasonably well with the Uemura value.