Zobrazeno 1 - 10
of 461
pro vyhledávání: '"Davis, M. J."'
Publikováno v:
Phys. Rev. A 106, 023320 (2022)
We study the non-equilibrium dynamics of two tunnel-coupled one-dimensional quasicondensates following a quench of the coupling strength from zero to a fixed finite value. More specifically, starting from two independent quasicondensates in thermal e
Externí odkaz:
http://arxiv.org/abs/2108.13095
Autor:
Straatsma, C. J. E., Colussi, V. E., Davis, M. J., Lobser, D. S., Holland, M. J., Anderson, D. Z., Lewandowski, H. J., Cornell, E. A.
Publikováno v:
Phys. Rev. A 94, 043640 (2016)
We study the monopole (breathing) mode of a finite temperature Bose-Einstein condensate in an isotropic harmonic trap recently developed by Lobser et al. [Nat.~Phys., \textbf{11}, 1009 (2015)]. We observe a nonexponential collapse of the amplitude of
Externí odkaz:
http://arxiv.org/abs/1608.07248
Autor:
Gauthier, G., Lenton, I., Parry, N. McKay, Baker, M., Davis, M. J., Rubinsztein-Dunlop, H., Neely, T. W.
Publikováno v:
Published in Optica Vol. 3, Issue 10, pp. 1136-1143 (2016)
Programable spatial light modulators (SLMs) have significantly advanced the configurable optical trapping of particles. Typically, these devices are utilized in the Fourier plane of an optical system, but direct imaging of an amplitude pattern can po
Externí odkaz:
http://arxiv.org/abs/1605.04928
Publikováno v:
Phys. Rev. A 94, 051602 (2016)
We develop a finite-temperature hydrodynamic approach for a harmonically trapped one-dimensional quasicondensate and apply it to describe the phenomenon of frequency doubling in the breathing-mode oscillations of its momentum distribution. The doubli
Externí odkaz:
http://arxiv.org/abs/1602.07889
Publikováno v:
New J. Phys. 18, 045010 (2016)
We use the coordinate Bethe ansatz to exactly calculate matrix elements between eigenstates of the Lieb-Liniger model of one-dimensional bosons interacting via a two-body delta-potential. We investigate the static correlation functions of the zero-te
Externí odkaz:
http://arxiv.org/abs/1601.00434
Akademický článek
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Autor:
Neely, T. W., Bradley, A. S., Samson, E. C., Rooney, S. J., Wright, E. M., Law, K. J. H., Carretero-González, R., Kevrekidis, P. G., Davis, M. J., Anderson, B. P.
Publikováno v:
Phys. Rev. Lett. 111, 235301 (2013)
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:
http://arxiv.org/abs/1204.1102
Publikováno v:
Phys. Rev. A 85, 031604(R) (2012)
We describe the use of the exact Yang-Yang solutions for the one-dimensional Bose gas to enable accurate kinetic-energy thermometry based on the root-mean-square width of an experimentally measured momentum distribution. Furthermore, we use the stoch
Externí odkaz:
http://arxiv.org/abs/1108.3608
Publikováno v:
Phys. Rev. A 84, 023608 (2011)
The classical-field formalism has been widely applied in the calculation of normal correlation functions, and the characterization of condensation, in finite-temperature Bose gases. Here we discuss the extension of this method to the calculation of m
Externí odkaz:
http://arxiv.org/abs/1011.6289
We report experimental observations and numerical simulations of the formation, dynamics, and lifetimes of single and multiply charged quantized vortex dipoles in highly oblate dilute-gas Bose-Einstein condensates (BECs). We nucleate pairs of vortice
Externí odkaz:
http://arxiv.org/abs/0912.3773