Dynamical properties of partially coherent Bose-Einstein condensates in double wells

2012 ◽  
Vol 524 (3-4) ◽  
pp. 205-211
Author(s):  
L.-H. Lu ◽  
Y.-Q. Li
Keyword(s):  
Partially Coherent ◽  
Dynamical Properties ◽  
Bose Einstein ◽  
Double Wells

scholarly journals Dynamical properties of ring dark soliton in quasi-two dimensional Bose-Einstein condensates

2008 ◽  
Vol 57 (11) ◽  
pp. 6786
Author(s):  
Zhang Wei-Xi ◽  
Wang Deng-Long ◽  
Ding Jian-Wen
Keyword(s):  
Dark Soliton ◽  
Two Dimensional ◽  
Dynamical Properties ◽  
Bose Einstein

Dynamics of matter-wave solitons in three-component Bose-Einstein condensates with time-modulated interactions and gain or loss effect

2022 ◽  
Author(s):  
Yajie Yang ◽  
Ying Dong
Keyword(s):  
Similarity Transformation ◽  
Soliton Solutions ◽  
Gain Coefficient ◽  
Loss Coefficient ◽  
Matter Wave ◽  
Pitaevskii Equation ◽  
Loss Parameter ◽  
Dynamical Properties ◽  
Bose Einstein ◽  
Loss Effect

Abstract The gain or loss effect on the dynamics of the matter-wave solitons in three-component Bose-Einstein condensates with time-modulated interactions trapped in parabolic external potentials are investigated analytically. Some exact matter-wave soliton solutions to the three-coupled Gross-Pitaevskii equation describing the three-component Bose-Einstein condensates are constructed by similarity transformation. The dynamical properties of the matter-wave solitons are analyzed graphically, and the effects of the gain or loss parameter and the frequency of the external potentials on the matter-wave solitons are explored. It is shown that the gain coefficient makes the atom condensate to absorb energy from the background, while the loss coefficient brings about the collapse of the condensate.

Description of Bose-Einstein Condensates in $$\mathcal {PT}$$ -Symmetric Double Wells

2015 ◽  
pp. 129-144
Author(s):  
Dennis Dast ◽  
Daniel Haag ◽  
Holger Cartarius ◽  
Günter Wunner ◽  
Rüdiger Eichler ◽  
...  
Keyword(s):  
Bose Einstein ◽  
Double Wells

BOSE–EINSTEIN CONDENSATES WITH LASER-INDUCED DIPOLE–DIPOLE INTERACTIONS BEYOND THE MEAN-FIELD APPROACH

2004 ◽  
Vol 18 (07) ◽  
pp. 961-974 ◽  
Author(s):  
G. KURIZKI ◽  
I. E. MAZETS ◽  
D. H. J. O'DELL ◽  
W. P. SCHLEICH
Keyword(s):  
Mean Field ◽  
Field Approach ◽  
Field Effects ◽  
Dipole Interactions ◽  
Induced Dipole ◽  
The Mean ◽  
Dynamical Properties ◽  
Bose Einstein

We present a brief review of our recent results concerning non-mean-field effects of laser-induced dipole–dipole interactions on static and dynamical properties of atomic Bose–Einstein condensates.

scholarly journals Initial Dynamics of Quantum Impurities in a Bose–Einstein Condensate

Atoms ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 22
Author(s):  
Magnus G. Skou ◽  
Thomas G. Skov ◽  
Nils B. Jørgensen ◽  
Jan J. Arlt
Keyword(s):  
Theoretical Description ◽  
Einstein Condensate ◽  
The Past ◽  
Bose Einstein Condensate ◽  
Wide Range ◽  
Dynamical Regimes ◽  
Dynamical Properties ◽  
Quantum Impurities ◽  
Transition Times ◽  
Bose Einstein

An impurity immersed in a medium constitutes a canonical scenario applicable in a wide range of fields in physics. Though our understanding has advanced significantly in the past decades, quantum impurities in a bosonic environment are still of considerable theoretical and experimental interest. Here, we discuss the initial dynamics of such impurities, which was recently observed in interferometric experiments. Experimental observations from weak to unitary interactions are presented and compared to a theoretical description. In particular, the transition between two initial dynamical regimes dominated by two-body interactions is analyzed, yielding transition times in clear agreement with the theoretical prediction. Additionally, the distinct time dependence of the coherence amplitude in these regimes is obtained by extracting its power-law exponents. This benchmarks our understanding and suggests new ways of probing dynamical properties of quantum impurities.

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