Bose-Einstein condensates
Controlling collapse in Bose-Einstein condensates by temporal modulation of the scattering length
... 3D Bose-Einstein condensates in the case when the scattering length in the Gross-Pitaevskii ~GP! equation contains con- stant ~dc! and time-variable ~ac! ...
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Dynamics of Bose-Einstein condensates in cigar-shaped traps
... The formation of Bose-Einstein condensates sBECsd in dilute gases [1–3] has created a field of nonlinear physics with specific problems. Among the features of BEC in gases are the spatial ...
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Coherent atomic oscillations and resonances between coupled Bose-Einstein condensates with time-dependent trapping potential
... coupled Bose-Einstein condensates ...between condensates and quantum self-trapping of population in the dependence of the relative phase between condensates ...
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Array of Bose-Einstein condensates under time-periodic Feshbach-resonance management
... of Bose-Einstein condensates under the action of a periodi- cally time-modulated atomic scattering length @Feshbach-resonance management ~FRM!# is ...
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Dissipationless shock waves in Bose-Einstein condensates with repulsive interaction between atoms
... We consider formation of dissipationless shock waves in Bose-Einstein condensates with repulsive interac- tion between atoms. It is shown that for big enough initial inhomogeneity of density, ...
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Dipolar Bose-Einstein condensates with large scattering length
... For this purpose, in this paper, in addition to the numerical study at unitarity, we also present a complete numerical study of the dipolar BEC in the strong-coupling regime for scatteri[r] ...
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Autosolitons in trapped Bose-Einstein condensates with two- and three-body inelastic processes
... three-dimensional condensates with attractive interaction between atoms and trapping potential are unstable if the number of atoms exceeds the critical value (N c ...
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Critical number of atoms for attractive Bose-Einstein condensates with cylindrically symmetrical traps
... We calculated, within the Gross-Pitaevskii formalism, the critical number of atoms for Bose-Einstein con- densates with two-body attractive interactions in cylindrical traps with different frequency ratios. ...
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Symbiotic gap and semigap solitons in Bose-Einstein condensates
... Using the variational approximation and numerical simulations, we study one-dimensional gap solitons in a binary Bose-Einstein condensate trapped in an optical-lattice potential. We consider the case of ...
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Exotic Bose-Einstein condensates: binary mixtures and dipolar gases
... Now with the available dipolar BECs of a different species of atoms, there is the possibility to investigate a binary mixture with two dipolar BECs of two types of dipolar interactions a[r] ...
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Dimensional reduction of a binary Bose-Einstein condensate in mixed dimensions
... It is now well established that, at ultralow temperature, dilute Bose-Einstein condensates (BECs) can be accurately described by the three-dimensional (3D) Gross-Pitaevskii equation (GPE) [1,2]. Some ...
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Ondas de choque em condensados de Bose-Einstein e espalhamento inelástico de átomos...
... in Bose-Einstein condensates” and “Inelastic scattering of atoms in a double ...a Bose-Einstein condensate (BEC) past a slender impenetrable macroscopic obstacle in the framework of the ...
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Bose –Einstein Condensation in Complex networks related to Consciousness
... follow Bose Statistics and can undergo Bose-Einstein condensation ...equilibrium Bose gas (Huang, 1987), neurons mapping to energy levels and gap junctions corresponding to ...undergo ...
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Bright dipolar Bose-Einstein-condensate soliton mobile in a direction perpendicular to polarization
... Introduction. A bright soliton is a self-bound object that maintains its shape, while traveling at a constant velocity in one dimension, due to a cancellation of nonlinear attraction and dispersive effects. In our ...
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Uma interpretação simples para os condensados de Bose-Einstein.
... The Bose-Einstein condensates were theoretically predicted in ...The Bose-Einstein condensates have been used in different contexts, from condensed matter to ...
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Turbulência de Ondas em Condensados de Bose-Einstein
... In this work we used as a starting point the theory developed by Zakharov and Nazarenko for treating wave turbulence in systems with weak non linearity such as atomic Bose-Einstein condensates with ...
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Dynamics of a collapsing and exploding Bose-Einstein condensed vortex state
... of Bose-Einstein condensates ~BECs! of dilute trapped bosonic atoms with repulsive inter- action at ultralow temperature has intensified theoretical and experimental studies on various aspects of the ...
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Bright vortex solitons in bose condensates
... Abstract. We suggest the possibility of observing and studying bright vortex solitons in attractive Bose-Einstein condensates in three dimensions with a ra- dial trap. Such systems lie on the verge ...
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Bose e Einstein: do nascimento da estatística quântica à condensação sem interação II.
... Γ, Einstein modificou as propriedades de con- vergˆencia da somat´oria que ainda ...fenˆomeno Einstein recorre, ainda que de maneira sucinta, a uma analogia com uma condensa¸c˜ ao em gases reais, n˜ao ...
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Bose e Einstein: do nascimento da estatística quântica à condensação sem interação I.
... de Bose lan¸cou as bases sobre as quais foi poss´ıvel construir uma mecˆanica estat´ıstica que incor- porasse, em seu bojo, a ent˜ao rec´em-criada mecˆanica ...de Bose-Einstein em vapores de metais ...
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