Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Pasquini, T. A."'
Autor:
Jo, G. -B., Choi, J. -H., Christensen, C. A., Lee, Y. -R., Pasquini, T. A., Ketterle, W., Pritchard, D. E.
Publikováno v:
Phys. Rev. Lett. 99, 240406 (2007)
Elongated Bose-Einstein condensates (BECs) exhibit strong spatial phase fluctuations even well below the BEC transition temperature. We demonstrate that atom interferometers using such condensates are robust against phase fluctuations, i.e. the relat
Externí odkaz:
http://arxiv.org/abs/0706.4041
Autor:
Jo, G. -B., Choi, J. -H., Christensen, C. A., Pasquini, T. A., Lee, Y. -R., Ketterle, W., Pritchard, D. E.
Publikováno v:
Phys. Rev. Lett. 98, 180401 (2007)
The recombination of two split Bose-Einstein condensates on an atom chip is shown to result in heating which depends on the relative phase of the two condensates. This heating reduces the number of condensate atoms between 10 and 40% and provides a r
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703006
Autor:
Jo, G. -B., Shin, Y., Will, S., Pasquini, T. A., Saba, M., Ketterle, W., Pritchard, D. E., Vengalattore, M., Prentiss, M.
Publikováno v:
Phy. Rev. Lett. 98, 030407 (2007)
We measured the relative phase of two Bose-Einstein condensates confined in an radio frequency induced double well potential on an atom chip. We observed phase coherence between the separated condensates for times up to 200 ms after splitting, a fact
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608585
Autor:
Pasquini, T. A., Saba, M., Jo, G., Shin, Y., Ketterle, W., Pritchard, D. E., Savas, T. A., Mulders, N.
We studied quantum reflection of Bose-Einstein condensates at normal incidence on a square array of silicon pillars. For incident velocities of 2.5-26 mm/s observations agreed with theoretical predictions that the Casimir-Polder potential of a reduce
Externí odkaz:
http://arxiv.org/abs/cond-mat/0603463
Publikováno v:
Phys. Rev. Lett. 95, 170402 (2005)
Two spatially separate Bose-Einstein condensates were prepared in an optical double-well potential. A bidirectional coupling between the two condensates was established by two pairs of Bragg beams which continuously outcoupled atoms in opposite direc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507154
Autor:
Shin, Y., Sanner, C., Jo, G. -B., Pasquini, T. A., Saba, M., Ketterle, W., Pritchard, D. E., Vengalattore, M., Prentiss, M.
Publikováno v:
Phys. Rev. A 72, 021604(R) (2005)
We have used a microfabricated atom chip to split a single Bose-Einstein condensate of sodium atoms into two spatially separated condensates. Dynamical splitting was achieved by deforming the trap along the tightly confining direction into a purely m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506464
Autor:
Shin, Y., Saba, M., Vengalattore, M., Pasquini, T. A., Sanner, C., Leanhardt, A. E., Prentiss, M., Pritchard, D. E., Ketterle, W.
Publikováno v:
Phys. Rev. Lett. 93, 160406 (2004)
Doubly quantized vortices were topologically imprinted in $|F=1>$ $^{23}$Na condensates, and their time evolution was observed using a tomographic imaging technique. The decay into two singly quantized vortices was characterized and attributed to dyn
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407045
Autor:
Shin, Y., Saba, M., Schirotzek, A., Pasquini, T. A., Leanhardt, A. E., Pritchard, D. E., Ketterle, W.
Publikováno v:
Phys. Rev. Lett. 92, 150401 (2004)
Bose-Einstein condensates of sodium atoms, prepared in an optical dipole trap, were distilled into a second empty dipole trap adjacent to the first one. The distillation was driven by thermal atoms spilling over the potential barrier separating the t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311514
Publikováno v:
Phys. Rev. Lett. 92, 050405 (2004)
A trapped-atom interferometer was demonstrated using gaseous Bose-Einstein condensates coherently split by deforming an optical single-well potential into a double-well potential. The relative phase between the two condensates was determined from the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306305
Publikováno v:
Science, 2005 Mar . 307(5717), 1945-1948.
Externí odkaz:
https://www.jstor.org/stable/3841884
