[PDF] Top 20 A tunable Bose-Einstein condensate for quantum interferometry

... falling samples of atoms[14]. The employed samples are cold (but not condensed) to have high coherence, and dilute, not to interact significantly with each other. This technique represents nowadays an almost mature field ... See full document

... (see Eq.(11)) is much shorter than in the “Superradiant Rayleigh Scattering” example as a result of the decreased pump-atom detuning. In Ref. [16] a suppression of quantum SR gain G of Eq. (8) by around two orders ... See full document

... of Bose-Fermi mixtures, where the fermi- ons play the role of impurities, the ground-state properties have been also investigated with perturbative methods ...a Bose bath have been investigated ... See full document

... in Bose-Einstein con- densates (BECs) [5], their particle nature was confirmed and their collisions were explored ...cal quantum numbers is impossible, a phenomenon dubbed topological blocking in ... See full document

... The Talbot effect is a manifestation of near-field (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 ... See full document

... driven quantum lattice systems are an interesting subject of investigation in view of reaching new topological phases of ...a Bose-Einstein condensate in a periodically driven one-dimensional ... See full document

... material quantum systems are magnetic ones, which are weaker than the electric dipole transitions typically by a factor of the fine structure constant α = ... See full document

... F = |h F ˆ i| . This phase exhibits a five-fold rotational symmetry, shown in Fig. 5. The bottom left panel also uses the spherical-harmonics representation, Eq. (20), to illustrate the change of the order parameter form ... See full document

... by Einstein, on the basis of a paper by Bose: for a gas of non interacting particles, below a certain temperature, there is a phase transition where a macroscopic fraction of the gas gets condensed, that ... See full document

... The objective tube is mounted on a precision xyz linear stage (Newport Ultralign Model -XYZ) for accurate positioning. The light which is collimated by the objec- tive is focused onto an EMCCD camera (Andor iXon  ... See full document

... trapped Bose-condensed gas is based on the mean-field ap- proximation, which yields the Gross-Pitaevski equation for the macroscopic wave ...the condensate is trapped in a single quantum state in a ... See full document

... Along the way, we learnt that we are not yet in a position to answer the question: “Which is the most suitable experimental setup for the detection of analogue Hawking radiation?”. This is because we discovered or ... See full document

... ideal quantum many-body ...that Bose-Einstein Condensates (BECs) and degenerate Fermi gases are often used as a laboratory to study a host of phenomena from many different areas of ... See full document

... The partially Bose-Einstein condensate trapped atomic gases provide an excellent test bench for developing finite temperature quantum theories. These weakly interacting systems can be modeled ... See full document

... between Bose-Einstein condensates (BECs) and optical fields has been a subject of intense activity and interest since the first realisation of BECs in the mid-1990s [1, ...as quantum phase ... 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

... iments on polaritons [36] have however seen cases where the higher energy of two Zeeman split states becomes macroscopically occupied. Such observations are often clearer than the equivalent behavior in terms of compe- ... 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

... many-body quantum system driven to a far-from-equilibrium state is a question that permeates several areas in ...physics. Quantum turbulence [1,2] is an example of such out-of-equilibrium ...its ... See full document

... Phase decoherence is closely connected with the understanding of Bose-Einstein condensation as spontaneous symmetry breaking. The global phase symmetry which is broken in the BEC is a continuous symmetry. ... See full document