Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1103/PhysRevA.102.033324

Аннотация: We study the decay of bosonic many-body states in the triple-well Bose-Hubbard model where bosons in the central well can escape into a reservoir. For vanishing interparticle interaction this system supports a nondecaying many-body state which is the antisymmetric Bose-Einstein condensate with particles occupying only the edge wellПоказать полностьюs. In the classical approach this quantum state corresponds to a symmetry-protected nondecaying state which is stable even at finite interaction below a certain intensity threshold. Here we demonstrate that despite the fact that the classical counterpart is stable the antisymmetric Bose-Einstein condensate is always metastable at finite interatomic interactions due to quantum fluctuations.

Журнал: PHYSICAL REVIEW A

Выпуск журнала: Vol. 102, Is. 3

Номера страниц: 33324

ISSN журнала: 24699926

Место издания: COLLEGE PK

Издатель: AMER PHYSICAL SOC

• Bychek Anna A. (Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
• Maksimov Dmitrii N. (Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
• Kolovsky Andrey R. (Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)

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