Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102021
Title: Autoresonant excitation of Bose-Einstein condensates
Authors: Batalov, S. V.
Shagalov, A. G.
Friedland, L.
Issue Date: 2018
Publisher: American Physical Society
Citation: Batalov S. V. Autoresonant excitation of Bose-Einstein condensates / S. V. Batalov, A. G. Shagalov, L. Friedland. — DOI 10.1103/PhysRevE.97.032210 // Physical Review E. — 2018. — Vol. 97. — Iss. 3. — 032210.
Abstract: Controlling the state of a Bose-Einstein condensate driven by a chirped frequency perturbation in a one-dimensional anharmonic trapping potential is discussed. By identifying four characteristic time scales in this chirped-driven problem, three dimensionless parameters P1,2,3 are defined describing the driving strength, the anharmonicity of the trapping potential, and the strength of the particles interaction, respectively. As the driving frequency passes the linear resonance in the problem, and depending on the location in the P1,2,3 parameter space, the system may exhibit two very different evolutions, i.e., the quantum energy ladder climbing (LC) and the classical autoresonance (AR). These regimes are analyzed both in theory and simulations with the emphasis on the effect of the interaction parameter P3. In particular, the transition thresholds on the driving parameter P1 and their width in P1 in both the AR and LC regimes are discussed. Different driving protocols are also illustrated, showing efficient control of excitation and deexcitation of the condensate. © 2018 American Physical Society.
Keywords: STATISTICAL MECHANICS
AUTORESONANT EXCITATION
BOSE-EINSTEIN CONDENSATES
CHARACTERISTIC TIME
DIFFERENT EVOLUTIONS
DIMENSIONLESS PARAMETERS
DRIVING FREQUENCIES
DRIVING PARAMETERS
INTERACTION PARAMETERS
BOSE-EINSTEIN CONDENSATION
ARTICLE
CLIMBING
EXCITATION
SIMULATION
URI: http://hdl.handle.net/10995/102021
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85044426120
PURE ID: 7027453
bc2e45ce-5d29-44d2-8de3-746ff6d0ace1
ISSN: 24700045
DOI: 10.1103/PhysRevE.97.032210
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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