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Publikováno v:
Journal of Low Temperature Physics. 129:473-487
The formation of quantized vortices in trapped, gaseous Bose-Einstein condensates is considered. The thermodynamic stability of vortex states and the essential role of the surface excitations as a route for vortex penetration into the condensate are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69b5d4b761a0267699e6a2ceba5ad1c4
https://doi.org/10.1023/a:1021424932297
https://doi.org/10.1023/a:1021424932297
Autor:
M M Salomaa
Publikováno v:
Journal of Physics: Condensed Matter. 7:L425-L428
Quantization of the circulation of superflow is considered for periodic vortex textures in the rotating A phase of superfluid 3He. The quantization rule is derived by the application of symmetry principles alone.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee839d4a4d8f19565914ca1390f3fd6b
https://doi.org/10.1088/0953-8984/7/32/001
https://doi.org/10.1088/0953-8984/7/32/001
Publikováno v:
Physica B: Condensed Matter. 178:318-330
Quantum-dynamic processes of phase slippage in3He are demonstrated to be associated with superfluid vortex nucleation, thus confirming Anderson's scenario for phase slippage through vortex generation and motion in superfluids. We also encounter more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::816881ae7b89c802dc382504ea9be3c3
https://doi.org/10.1016/0921-4526(92)90211-a
https://doi.org/10.1016/0921-4526(92)90211-a
Publikováno v:
Europhysics Letters (EPL). 17:429-435
Time-dependent Ginzburg-Landau theory is used to compute a generalized current-phase relation for superfluid 3He flow driven by a chemical-potential difference. Our numerical simulations reveal a tendency for avalanches of vortices to appear practica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de21a170ec2d9d77def4602cca5e143
https://doi.org/10.1209/0295-5075/17/5/009
https://doi.org/10.1209/0295-5075/17/5/009
Autor:
M. M. Salomaa
Publikováno v:
Czechoslovak Journal of Physics. 40:761-777
Quantized vortices in superfluid3He display a variety of novel structures that have previously not been observed in any other quantum fluids; their basic experimental manifestations and theoretical features have been reviewed by Hakonen, Lounasmaa an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f973e2626321ebef282c950bb5f4bd3c
https://doi.org/10.1007/bf01606016
https://doi.org/10.1007/bf01606016
Autor:
M M Salomaa
Publikováno v:
Journal of Physics: Condensed Matter. 2:1325-1333
A new first-order phase transition is proposed to manifest itself in rotating 3He-B for the vortex-free state, owing to counterflow. The 'flare-out' texture is found to become spontaneously unstable towards a new 'flare-in' texture, which is suggeste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d953c9cf3f8334275dec0c01ac3ac0cf
https://doi.org/10.1088/0953-8984/2/5/023
https://doi.org/10.1088/0953-8984/2/5/023
Autor:
M. M. Salomaa, S. M. M. Virtanen
We study the stability of vortices in trapped single-component Bose-Einstein condensates within self-consistent mean-field theories--especially we consider the Hartree-Fock-Bogoliubov-Popov theory and its recently proposed gapless extensions. It is s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7243a5fe209866e9e46fb505628bdfa8
We compute structures of vortex configurations in a harmonically trapped Bose-Einstein condensed atom gas within three different gapless self-consistent mean-field theories. Outside the vortex core region, the density profiles for the condensate and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1e3a8ff5e245b61e7365ab0fdfe2afd
Autor:
Yrjö Leino, M M Salomaa
Publikováno v:
Physica Scripta. :163-165
One possible model for materials displaying classically forbidden symmetry properties (apart from perfect quasicrystals) is the icosahedral glass model. We simulate the random growth of two types of two-dimensional icosahedral glasses consisting of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c66987259ec2864342a8fde7f779e9
https://doi.org/10.1088/0031-8949/1990/t33/030
https://doi.org/10.1088/0031-8949/1990/t33/030