Geodesic
Phase transitions in the $O(N)$ model with several coupling constants
Teoretičeskaâ i matematičeskaâ fizika, Tome 70 (1987) no. 1, pp. 125-134

Voir la notice de l'article provenant de la source Math-Net.Ru

Phase transformations of four-fermionic two-dimensional model (1) with several coupling constants are investigated in the leading order of $1/N$ expansion in the presence of non-zero temperature $T$ and chemical potential $\mu$. It is shown that at sufficiently large $T$ or $\mu$, the chiral invariance, spontaneously broken at $T$, $\mu=0$, is restored irrespective of values taken by the invariant constants. Critical values of the temperature and chemical potential are found. 
@article{TMF_1987_70_1_a9,
     author = {K. G. Klimenko},
     title = {Phase transitions in the $O(N)$ model with several coupling constants},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {125--134},
     publisher = {mathdoc},
     volume = {70},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1987_70_1_a9/}
}
TY  - JOUR
AU  - K. G. Klimenko
TI  - Phase transitions in the $O(N)$ model with several coupling constants
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1987
SP  - 125
EP  - 134
VL  - 70
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1987_70_1_a9/
LA  - ru
ID  - TMF_1987_70_1_a9
ER  - 
%0 Journal Article
%A K. G. Klimenko
%T Phase transitions in the $O(N)$ model with several coupling constants
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1987
%P 125-134
%V 70
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1987_70_1_a9/
%G ru
%F TMF_1987_70_1_a9
K. G. Klimenko. Phase transitions in the $O(N)$ model with several coupling constants. Teoretičeskaâ i matematičeskaâ fizika, Tome 70 (1987) no. 1, pp. 125-134. http://geodesic.mathdoc.fr/item/TMF_1987_70_1_a9/