Juan Eusebio Nieremberg
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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! ...
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 ...
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 ...
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 ...
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, ...
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] ...
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 ...
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. ...
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 ...
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] ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...