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Self-similar evolution of wave turbulence in Gross-Pitaevskii system Научная публикация

Журнал Physical Review E
ISSN: 2470-0045 , E-ISSN: 2470-0053
Вых. Данные Год: 2023, Том: 108, Номер: 6, Номер статьи : 064207, Страниц : 13 DOI: 10.1103/physreve.108.064207
Авторы Zhu Ying 1 , Semisalov Boris 2,3,4 , Krstulovic Giorgio 4 , Nazarenko Sergey 1
Организации
1 Université Côte d'Azur, CNRS, Institut de Physique de Nice (INPHYNI), 17 rue Julien Lauprêtre 06200 Nice, France
2 Federal Research Center for Information and Computational Technologies, 6 Academician Lavrentyev Avenue, 630090 Novosibirsk, Russia
3 Sobolev Institute of Mathematics SB RAS, 4 Academician Koptyug Avenue, 630090 Novosibirsk, Russia
4 Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Boulevard de l'Observatoire CS 34229–F 06304 Nice Cedex 4, France

Информация о финансировании (1)

1 Российский научный фонд 22-11-00287

Реферат: We study the universal nonstationary evolution of wave turbulence (WT) in Bose-Einstein condensates (BECs). Their temporal evolution can exhibit different kinds of self-similar behavior corresponding to a large-time asymptotic of the system or to a finite-time blowup. We identify self-similar regimes in BECs by numerically simulating the forced and unforced Gross-Pitaevskii equation (GPE) and the associated wave kinetic equation (WKE) for the direct and inverse cascades, respectively. In both the GPE and the WKE simulations for the direct cascade, we observe the first-kind self-similarity that is fully determined by energy conservation. For the inverse cascade evolution, we verify the existence of a self-similar evolution of the second kind describing self-accelerating dynamics of the spectrum leading to blowup at the zero mode (condensate) at a finite time. We believe that the universal self-similar spectra found in the present paper are as important and relevant for understanding the BEC turbulence in past and future experiments as the commonly studied stationary Kolmogorov-Zakharov (KZ) spectra.
Библиографическая ссылка: Zhu Y. , Semisalov B. , Krstulovic G. , Nazarenko S.
Self-similar evolution of wave turbulence in Gross-Pitaevskii system
Physical Review E. 2023. V.108. N6. 064207 :1-13. DOI: 10.1103/physreve.108.064207 WOS Scopus РИНЦ OpenAlex
Даты:
Поступила в редакцию: 12 июн. 2023 г.
Принята к публикации: 22 нояб. 2023 г.
Опубликована в печати: 18 дек. 2023 г.
Опубликована online: 18 дек. 2023 г.
Идентификаторы БД:
Web of science: WOS:001133506500012
Scopus: 2-s2.0-85177787513
РИНЦ: 64745457
OpenAlex: W4389923942
Цитирование в БД:
БД Цитирований
OpenAlex 7
Web of science 6
Scopus 6
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