Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  Bose-Einstein condensate
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Probing superfluidity of periodically trapped ultracold atoms in a cavity by transmission spectroscopy

100%
Bhattacherjee A., Kumar T., Mohan M.
Open Physics
|
2010
|
vol. 8
|
issue 5
850-853
EN
We study a system of periodic Bose-condensed atoms coupled to cavity photons using the input-output formalism of [14]. We show for the first time that the cavity will either act as a through-pass Lorentzian filter when the superfluid fraction of the condensate is minimum, or completely reflect the input field when the superfluid fraction is maximum. We show that by monitoring the ratio between the transmitted field and the reflected field, one can estimate the superfluid fraction.
2
Content available remote

A Single-Photon Router in Quantum Fluctuation of Field

100%
Liu L.-W., Shi Y.-Q., Qiong C.
Acta Physica Polonica A
|
2017
|
vol. 132
|
issue 4
1358-1362
EN
We investigate a single-photon quantum router in quantum fluctuation of fields. The optomechanical system composed of a cigar-shaped Bose-Einstein condensate trapped in an ultrahigh-finesse Fabry-Pérot cavity. We show how an analog of electromagnetically induced transparency in an optomechanical system can be used to produce a switch for a quantum fluctuation field using very low pumping field strength. The numerical results show that the output photon is completely different by turning the pump off and turning the pump on. We also show that the quantum noise sources are very small. This optomechanical system can serve as a single-photon quantum router.
3
Content available remote

Relation between chaos probability and zero-point number of the Melnikov function for a Bose-Einstein condensate

88%
Zhu Q., Hai W., Rong S.
Open Physics
|
2009
|
vol. 7
|
issue 4
738-746
EN
We investigate an attractive Bose-Einstein condensate perturbed by a weak traveling optical superlattice. It is demonstrated that under a stochastic initial set and in a given parameter region solitonic chaos appears with a certain probability that is tightly related to the zero-point number of the Melnikov function; the latter depends on the potential parameters. Effects of the lattice depths and wave vectors on the chaos probability are studied analytically and numerically, and different chaotic regions of the parameter space are found. The results suggest a feasible method for strengthening or weakening chaos by modulating the potential parameters experimentally.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.