Kicked Bose-Einstein Condensates: in Search of Exponential Instability

2009 ◽  
pp. 109-119
Author(s):  
T. S. Monteiro ◽  
A. Rancon ◽  
J. Ruostekoski
Keyword(s):  
Exponential Instability ◽  
Bose Einstein

scholarly journals Stability of single and multiple matter-wave dark solitons in collisionally inhomogeneous Bose–Einstein condensates

2017 ◽  
Vol 31 (10) ◽  
pp. 1742013 ◽  
Author(s):  
P. G. Kevrekidis ◽  
R. Carretero-González ◽  
D. J. Frantzeskakis
Keyword(s):  
Spectral Properties ◽  
Scattering Length ◽  
Dark Soliton ◽  
Matter Wave ◽  
Dark Solitons ◽  
Linear Limit ◽  
Exponential Instability ◽  
Bose Einstein ◽  
Good Agreement ◽  
Phase Motion

We examine the spectral properties of single and multiple matter-wave dark solitons in Bose–Einstein condensates confined in parabolic traps, where the scattering length is periodically modulated. In addition to the large density limit picture previously established for homogeneous nonlinearities, we explore a perturbative analysis in the vicinity of the linear limit, which provides good agreement with the observed spectral modes. Between these two analytically tractable limits, we use numerical computations to fill in the relevant intermediate regime. We find that the scattering length modulation can cause a variety of features absent for homogeneous nonlinearities. Among them, we note the potential oscillatory instability even of the single dark soliton, the potential absence of instabilities in the immediate vicinity of the linear limit for two dark solitons, and the existence of an exponential instability associated with the in-phase motion of three dark solitons.

Refroidissement sympathique et doubles condensats de Bose-Einstein

2002 ◽  
Vol 12 (5) ◽  
pp. 133-134 ◽  
Author(s):  
G. Delannoy ◽  
S. G. Murdoch ◽  
V. Boyer ◽  
V. Josse ◽  
P. Bouyer ◽  
...  
Keyword(s):  
Bose Einstein

Bose-Einstein condensates

1997 ◽  
Vol 167 (6) ◽  
pp. 649 ◽  
Author(s):  
Boris B. Kadomtsev ◽  
Mikhail B. Kadomtsev
Keyword(s):  
Bose Einstein

Strong Coupling: Polariton Bose Condensation

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Dissipative System ◽  
Bose Condensation ◽  
Einstein Condensation ◽  
Strong Coupling Regime ◽  
Stimulated Scattering ◽  
Exciton Polaritons ◽  
Bose Einstein

In this Chapter we address the physics of Bose-Einstein condensation and its implications to a driven-dissipative system such as the polariton laser. We discuss the dynamics of exciton-polaritons non-resonantly pumped within a microcavity in the strong coupling regime. It is shown how the stimulated scattering of exciton-polaritons leads to formation of bosonic condensates that may be stable at elevated temperatures, including room temperature.

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