Temat: 05.30.Jp - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Ultra-Cold Bosons in Optical Lattice: Time-of-Flight Imaging of Atom-Atom Correlations
Autorzy:: Zaleski, T.
Kopeć, T.
Powiązania:: https://bibliotekanauki.pl/articles/1431254.pdf
Data publikacji:: 2012-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 03.75.Kk
05.30.Jp
67.85.Hj
Opis:: In the present paper, we investigate a system of strongly interacting bosons confined in two-dimensional optical lattice. We propose a combination of the Bogoliubov method with the quantum rotor approach and determine the spatial atom-atom correlations. This allows us to calculate time-of-flight absorption images, which exhibit all the characteristic features present in experimental results, namely transition from superfluid peaks to Mott insulating blob.
Źródło:: Acta Physica Polonica A; 2012, 121, 4; 796-800
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Bright Solitons in Asymmetrically Trapped Bose-Einstein Condensates
Autorzy:: Golam Ali, Sk.
Talukdar, B.
Roy, S. K.
Powiązania:: https://bibliotekanauki.pl/articles/2047288.pdf
Data publikacji:: 2007-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 03.75.-b
03.75.Kk
05.30.Jp
Opis:: We study the dynamics of bright solitons in a Bose-Einstein condensate confined in a highly asymmetric trap. While working within the framework of a variational approach we carry out the stability analysis of the Bose-Einstein condensate solitons against collapse. When the number of atoms in the soliton exceeds a critical number N$\text{}_{c}$, it undergoes the so-called primary collapse. We find an analytical expression for N$\text{}_{c}$ in terms of appropriate experimental quantities that are used to produce and confine the condensate. We further demonstrate that, in the geometry of the problem considered, the width of the soliton varies inversely as the number of constituent atoms.
Źródło:: Acta Physica Polonica A; 2007, 111, 3; 289-297
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Cold Atomic Gases in Optical Lattices with Disorder
Autorzy:: Schulte, T.
Drenkelforth, S.
Kruse, J.
Ertmer, W.
Arlt, J. J.
Kantian, A.
Sanchez-Palencia, L.
Santos, L.
Sanpera, A.
Sacha, K.
Zoller, P.
Lewenstein, M.
Zakrzewski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2044614.pdf
Data publikacji:: 2006-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 03.75.Kk
03.75.Lm
05.30.Jp
64.60.Cn
Opis:: Cold atomic gases placed in optical lattices enable studies of simple condensed matter theory models with parameters that may be tuned relatively easily. When the optical potential is randomized (e.g. using laser speckle to create a random intensity distribution) one may be able to observe Anderson localization of matter waves for non-interacting bosons, the so-called Bose glass in the presence of interactions, as well as the Fermi glass or quantum spin glass for mixtures of fermions and bosons.
Źródło:: Acta Physica Polonica A; 2006, 109, 1; 89-99
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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