Maximally extended polygon approximations for the Hubbard model

Y.S. Yang

Physica A: Statistical Mechanics and its Applications, 1996, vol. 234, issue 1, 455-470

Abstract: In high-temperature expansion studies of the strongly correlated infinite-dimensional Hubbard model, the dominant contributions come from terms which form maximally extended polygons. Analytic expressions for the grand-canonical thermodynamical potential, the specific heat and the magnetic susceptibility have been obtained by retaining only the maximally extended polygons in the graphical expansions. Extensive analysis of the expansion series data with arbitrary particle densities gave no evidence of a finite phase transition temperature. This result is consistent with our earlier work on shorter exact series.

Date: 1996
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437196002324
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:234:y:1996:i:1:p:455-470

DOI: 10.1016/S0378-4371(96)00232-4

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().