[PDF] Top 20 Analogy between a two-well Bose-Einstein condensate and atom diffraction

... difference between the Hamiltonian parts on the even and odd subspaces are proportional to ␦ ...the two-well case, the energy shifts and splittings due to the coupling are larger for the same value ... See full document

... relative atom num- ber in the two ...the condensate occupation numbers remain very small compared to the total number of atoms and thus the maximum visibility is very close to the one for the ... See full document

... a Bose-Einstein condensate which interact via two-body elastic ...couples two internal states which together constitute an effective spin 1/2 system for each atom, and from which ... See full document

... of Bose-condensed sources for applications in precision ...of atom interferometric beam ...using Bose-condensed sources for precision measurements, focussing on the flux, the momentum width and the ... See full document

... (Fresnel) diffraction of a coherent plane wave incident on a periodic grating, which results in a nontrivial 2D pattern of fringes often referred to as a “Talbot ...Nearly two centuries after the discovery ... See full document

... aligned condensate. The significance of atom-atom interactions is too great to be neglected (see, ...of atom-atom ...the two alignments, we ... See full document

... observing diffraction [40]. One might naively hope that, in analogy with the optical case, one should be able to see diffraction if the com­ ponent of the atomic de-Broglie wave vector in the x ... See full document

... of Bose-Einstein condensates from an entropy point of view, since isentropic transformations have been widely used to manipulate quantum ...of two-component fermionic gases, the adiabatic tuning of ... See full document

... and diffraction have been predicted and observed in a variety of media, including hot atomic vapours, for a number of years ...collective atom-light interactions and instabilities which have been given a ... See full document

... If two spin half particles (fermions) couple together then they can form an integer spin pseudo- particle ...neutral atom (composed of an equal number of electrons and protons), the exchange of a proton and ... See full document

... After the initial prediction of possibility of macroscopic occupa- tion of the single-particle ground state by many photons [1] or by massive particles [2], it took more than seventy years to develop suf- ficient ... See full document

... the strong coupling regime is accessible. We have estimated typical parameters, charac- terizing Fröhlich-type Bose-Polarons in our system. Our estimations show the feasibility of spectroscopically measuring the ... See full document

... Einstein’s theory of general relativity [] predicts the existence of gravitational waves [], namely perturbations of the spacetime generated by accelerated mass distributions. Since sources are typically very far from ... See full document

... beams possessing a relative orbital angular momentum [9, 10], then an effective vector potential appears in the effective equation for the atomic wavefunction [1, 11]. The corresponding effective magnetic field created ... See full document

... There are two distinct regimes of rotation according to the value of Ω. For low rotational velocity, there is a transition from none to a few vortices in the system, and their characteristic size is much smaller ... See full document

... [29] Bradley, C.C., Sackett, C.A., Tollett, J.J. and Hulet, R.G. (1995) Evidence of Bose-Einstein Condensation in an Atomic Gas with Attractive Interactions. Physical Review Letters , 75, 1687-1690. ... See full document

... the condensate wave function and the Bogoliubov equations for the quasi-particle excitations has proven to be accurate in describing the collective modes of the ... See full document

... the two vortices appear superficially sim- ilar, both exhibiting tangential disgyrations of the spin vector at large length scales, their topology is distinctly ... See full document

... The central part of this work is the measurement and characterization of parametric in- stabilities. While quantifying loss rates in the BEC directly has proven very fruitful in previous experiments [146], where ... See full document

... atomic Bose-Einstein condensates have been the subject of intense experimental 关3兴 and theoretical 关4兴 inves- ...the Bose-Einstein conden- sate, which can be performed with a very high ... See full document