Black soliton in a quasi‐one‐dimensional trapped fermion‐fermion mixture | Zendy

Adhikari S. K. | Zendy

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Black soliton in a quasi‐one‐dimensional trapped fermion‐fermion mixture

Author(s) -

Adhikari S. K.

Publication year - 2006

Publication title -

laser physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.59

H-Index - 72

eISSN - 1612-202X

pISSN - 1612-2011

DOI - 10.1002/lapl.200610050

Subject(s) - physics , degenerate energy levels , soliton , fermion , excitation , harmonic oscillator , stationary state , nonlinear system , field (mathematics) , harmonic , quantum electrodynamics , quantum mechanics , mathematics , pure mathematics

Employing a time‐dependent mean‐field‐hydrodynamic model we study the generation of black solitons in a degenerate fermion‐fermion mixture in a cigar‐shaped geometry using variational and numerical solutions. The black soliton is found to be the first stationary vibrational excitation of the system and is considered to be a nonlinear continuation of the vibrational excitation of the harmonic oscillator state.We illustrate the stationary nature of the black soliton, by studying different perturbations on it after its formation. (© 2006 by Astro, Ltd. Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)

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