Zobrazeno 1 - 10
of 108
pro vyhledávání: '"P. B., Blakie"'
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p L012045 (2023)
A two-dimensional spin-1 Bose gas exhibits two Berezinskii-Kosterlitz-Thouless (BKT) transitions in the easy-plane ferromagnetic phase. The higher-temperature transition is associated with superfluidity of the mass current determined predominantly by
Externí odkaz:
https://doaj.org/article/6ffb2eadb35b40b58947bf778195b747
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033161 (2023)
We investigate the excitation spectrum and compressibility of a dipolar Bose-Einstein condensate in an infinite tube potential in the parameter regime where the transition between superfluid and supersolid phases occurs. Our study focuses on the dens
Externí odkaz:
https://doaj.org/article/6c71b699357d4c118d819977c897c93e
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033153 (2022)
We develop a 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.
Externí odkaz:
https://doaj.org/article/3ec342d319b44cbb9b6b3e79d6b5d56a
Autor:
Xiaoquan Yu, P. B. Blakie
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033056 (2022)
We develop an analytical description of static ferrodark solitons, the 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 a single
Externí odkaz:
https://doaj.org/article/bae908b0b1ae40aebbd3427387b35399
Autor:
Xiaoquan Yu, P. B. Blakie
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023043 (2021)
We report a stable magnetic domain wall in a uniform ferromagnetic spin-1 condensate, characterized by the magnetization having a dark soliton profile with nonvanishing superfluid density. We find exact stationary solutions for a particular ratio of
Externí odkaz:
https://doaj.org/article/4ac51f01ac954c78a12df7b01e04526f
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013283 (2021)
We describe and benchmark a method to accurately calculate the quantum droplet states that can be produced from a dipolar Bose-Einstein condensate. Our approach also allows us to consider vortex states, where the atoms circulate around the long-axis
Externí odkaz:
https://doaj.org/article/162eeab2c0994c298c154ff6b04aeec5
Autor:
L. A. Williamson, P. B. Blakie
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013154 (2021)
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://doaj.org/article/c14733d9c53849bbabb85e8b6993fda1
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 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
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043318 (2020)
We present a theory for the emergence of a supersolid state in a cigar-shaped dipolar quantum Bose gas. Our approach is based on a reduced three-dimensional (3D) theory, where the condensate wave function is decomposed into an axial field and a trans
Externí odkaz:
https://doaj.org/article/f45871b171214f34a75a3d1560f1fef4