A Semiclassical Approach to the Nonlocal Nonlinear Schrödinger Equation with a Non-Hermitian Term; Mathematics; Vol. 12, iss. 4
| Parent link: | Mathematics.— .— Basel: MDPI AG Vol. 12, iss. 4.— 2024.— Article number 580, 22 p. |
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| Résumé: | Title screen The nonlinear Schrödinger equation (NLSE) with a non-Hermitian term is the model for various phenomena in nonlinear open quantum systems. We deal with the Cauchy problem for the nonlocal generalization of multidimensional NLSE with a non-Hermitian term. Using the ideas of the Maslov method, we propose the method of constructing asymptotic solutions to this equation within the framework of semiclassically concentrated states. The semiclassical nonlinear evolution operator and symmetry operators for the leading term of asymptotics are derived. Our approach is based on the solutions of the auxiliary dynamical system that effectively linearizes the problem under certain algebraic conditions. The formalism proposed is illustrated with the specific example of the NLSE with a non-Hermitian term that is the model of an atom laser. The analytical asymptotic solution to the Cauchy problem is obtained explicitly for this example. Текстовый файл |
| Langue: | anglais |
| Publié: |
2024
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| Accès en ligne: | http://earchive.tpu.ru/handle/11683/132477 https://doi.org/10.3390/math12040580 |
| Format: | Électronique Chapitre de livre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672132 |
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| 200 | 1 | |a A Semiclassical Approach to the Nonlocal Nonlinear Schrödinger Equation with a Non-Hermitian Term |f A. E. Kulagin, A. V. Shapovalov | |
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| 300 | |a Title screen | ||
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| 330 | |a The nonlinear Schrödinger equation (NLSE) with a non-Hermitian term is the model for various phenomena in nonlinear open quantum systems. We deal with the Cauchy problem for the nonlocal generalization of multidimensional NLSE with a non-Hermitian term. Using the ideas of the Maslov method, we propose the method of constructing asymptotic solutions to this equation within the framework of semiclassically concentrated states. The semiclassical nonlinear evolution operator and symmetry operators for the leading term of asymptotics are derived. Our approach is based on the solutions of the auxiliary dynamical system that effectively linearizes the problem under certain algebraic conditions. The formalism proposed is illustrated with the specific example of the NLSE with a non-Hermitian term that is the model of an atom laser. The analytical asymptotic solution to the Cauchy problem is obtained explicitly for this example. | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |c Basel |n MDPI AG |t Mathematics | |
| 463 | 1 | |d 2024 |t Vol. 12, iss. 4 |v Article number 580, 22 p. | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a semiclassically concentrated solutions | |
| 610 | 1 | |a Maslov’s complex germ method | |
| 610 | 1 | |a open quantum systems; asymptotic solution | |
| 610 | 1 | |a dissipation; atom laser | |
| 700 | 1 | |a Kulagin |b A. E. |c mathematician |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1992- |g Anton Evgenievich |9 18885 | |
| 701 | 1 | |a Shapovalov |b A. V. |c mathematician |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1949- |g Aleksandr Vasilyevich |9 15847 | |
| 712 | 0 | 2 | |a Томский политехнический университет |c 1991- |9 26305 |
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