Zobrazeno 1 - 10
of 108
pro vyhledávání: '"P B Blakie"'
Autor:
D Baillie, P B Blakie
Publikováno v:
New Journal of Physics, Vol 17, Iss 3, p 033028 (2015)
We develop theory for a flattened dipolar Bose–Einstein condensate produced by harmonic confinement along one direction. The role of both short-ranged contact interactions and long-ranged dipole–dipole interactions is considered, and the dipoles
Externí odkaz:
https://doaj.org/article/74aedbec8fd544f59023b05930f25bf8
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Multiple scattering with wave-like atoms is known to produce non-trivial many-body effects. Here, the authors investigate multiple scattering in the semi-classical limit using deviations in the scattering halos produced by the collision of indistingu
Externí odkaz:
https://doaj.org/article/a43b2532fc8946e4a4fb8992def53b67
Publikováno v:
Physical Review Research. 5
A two-dimensional (2D) spin-1 Bose gas exhibits two Berezenskii-Kosterlitz-Thouless (BKT) transitions in the easy-plane ferromagnetic phase. The higher temperature transition is associated with superfluidity of the mass current determined predominant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1dc459279009470dc54ed17ff8279b3
https://doi.org/10.1103/physrevresearch.5.l012045
https://doi.org/10.1103/physrevresearch.5.l012045
Publikováno v:
Physical Review A. 107
We calculate the ground states of a dipolar Bose gas confined in an infinite tube potential. We use the extended Gross-Pitaevskii equation theory and present a novel numerical method to efficiently obtain solutions. A key feature of this method is an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89a7b72dc153cfe94f704e94532e1b7f
https://doi.org/10.1103/physreva.107.033301
https://doi.org/10.1103/physreva.107.033301
Autor:
Xiaoquan Yu, P. B. Blakie
Publikováno v:
Physical Review Research. 4
We develop an analytical description of static ferrodark solitons, the $\mathbb{Z}_2$ topological defects in the magnetic order, in the easy-plane phase of ferromagnetic spin-1 Bose-Einstein condensates. We find that the type-I ferrodark soliton has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ab4f096c8cfac89b4ed59b7b7a9d146
https://doi.org/10.1103/physrevresearch.4.033056
https://doi.org/10.1103/physrevresearch.4.033056
We develop theory for a two-component miscible dipolar condensate in a planar trap. Using numerical solutions and a variational theory we solve for the excitation spectrum and identify regimes where density- and spin-roton excitations are favored. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af20e3a7babc74acd34c8b585c9e71be
http://arxiv.org/abs/2206.08551
http://arxiv.org/abs/2206.08551
Publikováno v:
Physical Review A. 104
We develop two approximate theories to describe the miscible and immiscible droplets that can occur in a binary mixture of highly magnetic bosonic atoms. In addition to allowing simpler calculations, the approximate theories provide insight into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afde1e338e7a8b3a2b4077d9e9954558
https://doi.org/10.1103/physreva.104.053316
https://doi.org/10.1103/physreva.104.053316
Autor:
Xiaoquan Yu, P. B. Blakie
Exact propagating topological solitons are found in the easy-plane phase of ferromagnetic spin-1 Bose-Einstein condensates, manifesting themselves as kinks in the transverse magnetization. Propagation is only possible when the symmetry-breaking longi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3563acf419e4b6d769bcfcc5bd34b717
http://arxiv.org/abs/2104.12967
http://arxiv.org/abs/2104.12967
Autor:
P. B. Blakie, Lewis A. Williamson
Publikováno v:
Physical Review Research. 3
Ferromagnetic spin-1 Bose-Einstein condensates in the broken-axisymmetric phase support polar-core spin vortices (PCVs), which are intimately linked to the nonequilibrium dynamics of the system. For a purely transversely magnetized system, the Turner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ace1fb9fd297430e50e58d91e3e1724
https://doi.org/10.1103/physrevresearch.3.013154
https://doi.org/10.1103/physrevresearch.3.013154
In this paper we develop a theory for an infinitely long droplet state of a zero temperature dipolar bosonic gas. The infinite droplet theory yields simpler equations to solve for the droplet state and its collective excitations. We explore the behav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06f2f27e6f67217fa69a2646faaf8840