Authors
Citation
Iv. Barashenkov, STABILITY-CRITERION FOR DARK SOLITONS, Physical review letters, 77(7), 1996, pp. 1193-1197
Citations number
38
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
77
Issue
7
Year of publication
1996
Pages
1193 - 1197
Database
ISI
SICI code
0031-9007(1996)77:7<1193:SFDS>2.0.ZU;2-L
Abstract
We prove that the inequality partial derivative P/partial derivative v
< 0 is the stability criterion for dark solitons of the one-dimension
al nonlinear Schrodinger equation with general nonlinearity. Here v is
the soliton's velocity, and P renormalized momentum: P = (i/2) integr
al(psi(x)psi - psi(x) psi*)(1 - (rho 0)/\psi\(2))dx.