Soliton regimes of ultrashort pulse propagation through an array of asymmetric quantum objects
- Russian Research Center 'Kurchatov Institute', (Russian Federation), E-mail: barab@newmail.ru
- Tomsk State University (Russian Federation), E-mail: n_ustinov@mail.ru
Nonlinear regimes of two-component ultrashort pulse propagation through an array of anisotropic quantum systems are analyzed theoretically under conditions when the slowly varying envelope approximation is inapplicable. It is shown that if the spectral width of the pulse is much larger than the quantum transition frequency, then the dynamics of its ordinary component can be described by a modified sine-Gordon equation that belongs to the class of integrable models but has never been used in physical applications. It is shown that the extraordinary pulse component responsible for the dynamic Stark shift of the transition frequency is coupled to its ordinary component by an algebraic relation. The soliton solutions to the derived equation are classified. Depending on the pulse duration, the solutions have the form of 2{pi} pulses (kinks and antikinks) or steady traveling 0{pi} pulses having no counterparts in isotropic models (neutral kinks). Interactions between the medium and solitons of different types and soliton collisions are analyzed.
- OSTI ID:
- 21067615
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 103, Issue 4; Other Information: DOI: 10.1134/S1063776106100074; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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