Zobrazeno 1 - 10
of 27
pro vyhledávání: '"T. J. Greytak"'
Publikováno v:
Canadian Journal of Physics. 83:293-300
Ultracold hydrogen offers unique possibilities for precision spectroscopy, studies of atomic interactions, and the creation of quantum fluids containing mixtures of hydrogen and deuterium. Current techniques for trapping and cooling hydrogen have pro
Autor:
T. J. Greytak
Publikováno v:
Dynamical Critical Phenomena and Related Topics ISBN: 9783540095231
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81f096fd87acb96d8acdd4e5c87a75f5
https://doi.org/10.1007/3-540-09523-3_6
https://doi.org/10.1007/3-540-09523-3_6
We have trapped large numbers of copper and silver atoms using buffer gas cooling. Up to 3x10^12 copper atoms and 4x10^13 silver atoms are trapped. Lifetimes are as long as 5 s, limited by collisions with the buffer gas. Ratios of elastic to inelasti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b769478200edd44efc5128723ff90611
Autor:
Albert Einstein, T. J. Greytak, Carl E. Wieman, Satyendranath Bose, Eric A. Cornell, Daniel Kleppner
Publikováno v:
Hydrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8200cbf7b5b37f1a400563b7ee534dd
https://doi.org/10.2307/j.ctv1pncpvj.25
https://doi.org/10.2307/j.ctv1pncpvj.25
Publikováno v:
Optical Society of America Annual Meeting.
Atomic hydrogen has been loaded into a 1-K deep magnetic trap through the use of a dilution refrigerator. Evaporative cooling has been used to cool the trapped hydrogen into the submillikelvin temperature regime. These techniques have produced a samp
Publikováno v:
Physica B: Condensed Matter. :17-18
We present the results of experiments measuring the film thickness dependence of the sticking probability for H on thin films of superfluid4He for H atom temperatures of 0.3–4.0 mK. Data is presented for 0.6 nm to 1 mm thick films on a silver sinte
Publikováno v:
Physica B: Condensed Matter. :13-14
We present a model for and the results of experiments on evaporative cooling of magnetically trapped atomic hydrogen. Forced evaporative cooling and compression were performed simultaneously to produce a sample with a density of 8×10 13 cm -3 at a t
Publikováno v:
Physica B: Condensed Matter. :15-16
We present the results of experiments measuring the sticking probability for atomic H on bulk superfluid4He for H atom temperatures of 0.3–4.0 mK. Magnetically trapped, evaporatively cooled gases of atomic hydrogen were used. The atom temperature (
Publikováno v:
Journal of Low Temperature Physics. 18:389-425
We have carried out Brillouin scattering experiments in superfluid 3He-4He solutions at six molar concentrations (x = 0.050, 0.100, 0.135, 0.250, 0.398, and 0.606) for temperatures as low as 0.4 K. We have measured the relative scattered intensities
Autor:
R. L. Woerner, T. J. Greytak
Publikováno v:
Journal of Low Temperature Physics. 13:149-152
Precise measurements of the depolarization properties and intensity of laser light Raman-scattered from roton pairs in liquid4He are described and compared with several existing theories.