Zobrazeno 1 - 10
of 13
pro vyhledávání: '"S J, Rooney"'
Publikováno v:
Physical Review A. 93
We simulate the dissipative evolution of a vortex in a trapped finite-temperature dilute-gas Bose-Einstein condensate using first-principles open-systems theory. Simulations of the complete stochastic projected Gross-Pitaevskii equation for a partial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b7ddbdfbf253d200825ba768f86a3ed
https://doi.org/10.1103/physreva.93.063603
https://doi.org/10.1103/physreva.93.063603
Publikováno v:
Physical review A : atomic, molecular and optical physics, 2014, Vol.89(3), pp.033610 [Peer Reviewed Journal]
We study bright solitons in the Gross-Pitaevskii equation as they are split and recombined in a low energy system. We present new analytic results determining the general region in which a soliton may not be split on a potential barrier, and confirm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b33ad78d9a5e72ce97ae554de2809f68
https://doi.org/10.1103/physreva.89.033610
https://doi.org/10.1103/physreva.89.033610
Publikováno v:
Physical Review E. 89
We present a method for solving the stochastic projected Gross-Pitaevskii equation (SPGPE) for a three-dimensional Bose gas in a harmonic-oscillator trapping potential. The SPGPE contains the challenge of both accurately evolving all modes in the low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28bbbac7093c465310d965480ee59419
https://doi.org/10.1103/physreve.89.013302
https://doi.org/10.1103/physreve.89.013302
Publikováno v:
Physical Review A. 88
Experimental stirring of a toroidally trapped Bose-Einstein condensate at high temperature generates a disordered array of quantum vortices that decays via thermal dissipation to form a macroscopic persistent current [T. W. Neely em et al. arXiv:1204
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc77f4ec86add7e73290c99054566e59
https://doi.org/10.1103/physreva.88.063620
https://doi.org/10.1103/physreva.88.063620
Autor:
S. J. Rooney, Ricardo Carretero-González, Ashton S. Bradley, Tyler W. Neely, Panayotis G. Kevrekidis, E. C. Samson, Kody J. H. Law, Brian P. Anderson, Matthew J. Davis, Ewan M. Wright
Under suitable forcing a fluid exhibits turbulence, with characteristics strongly affected by the fluid's confining geometry. Here we study two-dimensional quantum turbulence in a highly oblate Bose-Einstein condensate in an annular trap. As a compre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fba160bff2c5cfebb76020fe8899a0d0
http://arxiv.org/abs/1204.1102
http://arxiv.org/abs/1204.1102
We have achieved the first full implementation of the stochastic projected Gross-Pitaevskii equation for a three-dimensional trapped Bose gas at finite temperature. Our work advances previous applications of this theory, which have only included grow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1865fa19087a3c04c105b50fa00fb41
Publikováno v:
Physical Review A. 84
We study the Kelvin mode excitations on a vortex line in a three-dimensional trapped Bose-Einstein condensate at finite temperature. Our stochastic Gross-Pitaevskii simulations show that the activation of these modes can be suppressed by tightening t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75487f03a84600defcfbc53f75a0c12b
https://doi.org/10.1103/physreva.84.023637
https://doi.org/10.1103/physreva.84.023637
Autor:
Ewan M. Wright, Ricardo Carretero-González, Panos Kevrekidis, Kody J. H. Law, E. C. Samson, S. J. Rooney, Brian P. Anderson, Ashton S. Bradley, Matthew J. Davis, Tyler W. Neely
Publikováno v:
2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology.
We report the experimental generation of two-dimensional quantum turbulence in dilute-gas Bose-Einstein condensates by stirring the condensate with a laser beam, and the decay of the turbulent state to a large-scale flow in the form of a persistent c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcfd782cc8517176c84ae1b638af08f3
https://doi.org/10.1109/iqec-cleo.2011.6194168
https://doi.org/10.1109/iqec-cleo.2011.6194168
Publikováno v:
Physical Review A. 81
The decay of a vortex from a non-rotating high temperature Bose-Einstein condensate (BEC) is modeled using the stochastic projected Gross-Pitaevskii equation (SPGPE). In order to exploit the tunability of temperature in SPGPE theory while maintaining
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f205fec621af49f3d7b0976b5816af5a
https://doi.org/10.1103/physreva.81.023630
https://doi.org/10.1103/physreva.81.023630
OBJECTIVE—To examine the expansion of aneurysmal aortic segments (⩾ 35 mm) and to assess the impact of clinical and patho-anatomical factors on aneurysm expansion. DESIGN—87 consecutive patients (mean age 63.6 years, range 22-84 years) were stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89ba0c345d1e0d5f268af516eb6afb67
https://europepmc.org/articles/PMC1760947/
https://europepmc.org/articles/PMC1760947/