Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Chiara Menotti"'
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033276 (2020)
We develop a quantum many-body theory of the Bose-Hubbard model based on the canonical quantization of the action derived from a Gutzwiller mean-field ansatz. Our theory is a systematic generalization of the Bogoliubov theory of weakly interacting ga
Externí odkaz:
https://doaj.org/article/e7510939d42a4d20aca01834a612d36c
Publikováno v:
SciPost Physics, Vol 12, Iss 3, p 111 (2022)
We study the effects of quantum fluctuations in the two-component Bose-Hubbard model generalizing to mixtures the quantum Gutzwiller approach introduced recently in [Phys. Rev. Research 2, 033276 (2020)]. As a basis for our study, we analyze the m
Externí odkaz:
https://doaj.org/article/2e4af6b7bccf484fb4969bfe56fb4adb
Publikováno v:
Journal of Low Temperature Physics. 138:729-734
We study the effect of the transverse degrees of freedom on the velocity of sound in a Bose-Einstein condensate immersed in a one-dimensional optical lattice and radially confined by a harmonic trap. We compare the results of full three-dimensional c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5cd4394a7c4362ff862f04b37707b51
https://doi.org/10.1007/s10909-005-2294-z
https://doi.org/10.1007/s10909-005-2294-z
Publikováno v:
Physical Review A. 56:2123-2131
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dde1fa635310283d7edbe70006ef716b
https://doi.org/10.1103/physreva.56.2123
https://doi.org/10.1103/physreva.56.2123
Autor:
Sandro Stringari, Chiara Menotti
Publikováno v:
Physical Review A. 66
Starting from the hydrodynamic equations of superfluids, we calculate the frequencies of the collective oscillations of a harmonically trapped Bose-Einstein gas for various one-dimensional configurations at zero temperature. These include the mean-fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dc2ff3999b3de3a3b55102ffd9b384c
https://doi.org/10.1103/physreva.66.043610
https://doi.org/10.1103/physreva.66.043610
Publikováno v:
Journal of Physics B: Atomic, Molecular & Optical Physics; May2006, Vol. 39 Issue 10, p135-142, 8p
Autor:
Bartolo, Nicola
Publikováno v:
Condensed Matter [cond-mat]. Université Montpellier II-Sciences et Techniques du Languedoc, 2014. English. ⟨NNT : 2014MON20177⟩
The experimental achievement of Bose-Einstein condensation and Fermi degeneracy with ultracold gases boosted tremendous progresses both in theoretical methods and in the development of new experimental tools. Among them, intriguing possibilities have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e8043aa315a4d6a8548d53f945523def
https://tel.archives-ouvertes.fr/tel-01203503
https://tel.archives-ouvertes.fr/tel-01203503
