Geodesic
Motion of~a~Klein--Gordon kink in~an~external field
Teoretičeskaâ i matematičeskaâ fizika, Tome 84 (1990) no. 3, pp. 366-371

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

The drift velocity of a kink of the one-dimensional nonlinear Klein–Gordon equation is calculated in the framework of the linear response approximation. The kink drifts by virtue of an external field that lifts the degeneracy of the ground state of the unperturbed system. It is shown that in the leading low-temperature approximation the drift velocity can be expressed in the usual manner in terms of a diffusion coefficient. 
@article{TMF_1990_84_3_a3,
     author = {V. D. Tsukanov},
     title = {Motion {of~a~Klein--Gordon} kink in~an~external field},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {366--371},
     publisher = {mathdoc},
     volume = {84},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_84_3_a3/}
}
TY  - JOUR
AU  - V. D. Tsukanov
TI  - Motion of~a~Klein--Gordon kink in~an~external field
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1990
SP  - 366
EP  - 371
VL  - 84
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1990_84_3_a3/
LA  - ru
ID  - TMF_1990_84_3_a3
ER  - 
%0 Journal Article
%A V. D. Tsukanov
%T Motion of~a~Klein--Gordon kink in~an~external field
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1990
%P 366-371
%V 84
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1990_84_3_a3/
%G ru
%F TMF_1990_84_3_a3
V. D. Tsukanov. Motion of~a~Klein--Gordon kink in~an~external field. Teoretičeskaâ i matematičeskaâ fizika, Tome 84 (1990) no. 3, pp. 366-371. http://geodesic.mathdoc.fr/item/TMF_1990_84_3_a3/