Geodesic
Three-dimensional Gross--Neveu model in an~external electric field.~II
Teoretičeskaâ i matematičeskaâ fizika, Tome 89 (1991) no. 3, pp. 388-394

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The phase structure of the three-dimensional Gross–Neveu model in a constant external electric field $E$ is investigated. It is shown that for $g>0$ the model remains chiral invariant for all values of $E$. For $g0$, there exists a critical value $E_c$ of the external field such that for $E$ the chiral symmetry is spontaneously broken, while for $E\geqslant E_c$ it is restored. 
@article{TMF_1991_89_3_a4,
     author = {K. G. Klimenko},
     title = {Three-dimensional {Gross--Neveu} model in an~external electric {field.~II}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {388--394},
     publisher = {mathdoc},
     volume = {89},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_89_3_a4/}
}
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K. G. Klimenko. Three-dimensional Gross--Neveu model in an~external electric field.~II. Teoretičeskaâ i matematičeskaâ fizika, Tome 89 (1991) no. 3, pp. 388-394. http://geodesic.mathdoc.fr/item/TMF_1991_89_3_a4/