Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Harber, D."'
Publikováno v:
Phys.Rev.A72:033610,2005
We have performed a measurement of the Casimir-Polder force using a magnetically trapped 87-Rb Bose-Einstein condensate. By detecting perturbations of the frequency of center-of-mass oscillations of the condensate perpendicular to the surface, we are
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506208
A magnetically trapped 87Rb Bose-Einstein condensate is used as a sensitive probe of short-range electrical forces. In particular, the electric polarization of, and the subsequent electric field generated by, 87Rb adsorbates on conducting and insulat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403254
We investigate the relationship between the coherence of a partially Bose-condensed spinor gas and its temperature. We observe cooling of the normal component driven by decoherence as well the effect of temperature on decoherence rates.
Comment:
Comment:
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309253
We have measured magnetic trap lifetimes of ultra-cold Rb87 atoms at distances of 5-1000 microns from surfaces of conducting metals with varying resistivity. Good agreement is found with a theoretical model for losses arising from near-field magnetic
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307546
Coherent behavior of spinor Bose-Einstein condensates is studied in the presence of a significant uncondensed (normal) component. Normal-superfluid exchange scattering leads to a near-perfect local alignment between the spin fields of the two compone
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306584
We use precision microwave spectroscopy of magnetically trapped, ultra-cold 87Rb to characterize intra- and inter-state density correlations. The cold collision shifts for both normal and condensed clouds are measured. The results verify the presence
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209249
We have performed precision microwave spectroscopy on ultra-cold Rb-87 confined in a magnetic trap, both above and below the Bose-condensation transition. The cold collision shifts for both normal and condensed clouds were measured, which allowed the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0208294
Autor:
McGuirk, J. M., Lewandowski, H. J., Harber, D. M., Nikuni, T., Williams, J. E., Cornell, E. A.
We present the first spatially resolved images of spin waves in a gas. The complete longitudinal and transverse spin field as a function of time and space is reconstructed. Frequencies and damping rates for a standing-wave mode are extracted and comp
Externí odkaz:
http://arxiv.org/abs/cond-mat/0204182
We observe counter-intuitive spin segregation in an inhomogeneous sample of ultra-cold, non-condensed Rubidium atoms in a magnetic trap. We use spatially selective microwave spectroscopy to verify a model that accounts for the differential forces on
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109476
Akademický článek
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