IMPLEMENTING THE 4-SLAVE-BOSON APPROACH WITH THE CORRECT CONTINUUM-LIMIT OF THE FUNCTIONAL INTEGRAL

Authors
ARRIGONI E STRINATI GC
Citation
E. Arrigoni et Gc. Strinati, IMPLEMENTING THE 4-SLAVE-BOSON APPROACH WITH THE CORRECT CONTINUUM-LIMIT OF THE FUNCTIONAL INTEGRAL, Physica. C, Superconductivity, 235, 1994, pp. 2255-2256
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
4
Pages
2255 - 2256
Database
ISI
SICI code
0921-4534(1994)235:<2255:IT4AWT>2.0.ZU;2-3
Abstract
We show that physical inconsistencies, occurring when considering Gaus sian corrections to the saddle-point solution within the Kotliar and R uckenstein four-slave-boson approach, can be removed by a proper treat ment of the continuum limit of the associated functional integral and by a consistent analytic choice of the bosonic hopping factor. Our res ults show good agreement with an exact cluster calculation.