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Dynamics of collapsing and exploding Bose–Einstein condensates
When atoms in a gas are cooled to extremely low temperatures, they will—under the appropriate conditions—condense into a single quantum-mechanical state known as a Bose–Einstein condensate. In suchExpand
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Atom–molecule coherence in a Bose–Einstein condensate
Recent advances in the precise control of ultracold atomic systems have led to the realisation of Bose–Einstein condensates (BECs) and degenerate Fermi gases. An important challenge is to extend thisExpand
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Controlled collapse of a Bose-Einstein condensate.
The point of instability of a Bose-Einstein condensate (BEC) due to attractive interactions was studied. Stable 85Rb BECs were created and then caused to collapse by slowly changing the atom-atomExpand
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Toward Good Read-Across Practice ( GRAP ) Guidance
149 Received January 25, 2016; Accepted February 8, 2016; Epub February 11, 2016; http://dx.doi.org/10.14573/altex.1601251 t4 report* Toward Good Read-Across Practice (GRAP) Guidance Nicholas BallExpand
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Double-pass acousto-optic modulator system
A practical problem that arises when using acousto-optic modulators (AOMs) to scan the laser frequency is the dependence of the beam diffraction angle on the modulation frequency. Alignment problemsExpand
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First accuracy evaluation of NIST-F2
We report the first accuracy evaluation of NIST-F2, a second-generation laser-cooled caesium fountain primary standard developed at the National Institute of Standards and Technology (NIST) with aExpand
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Cold-atom double-Λ coherent population trapping clock
F.-X. Esnault,1,2 E. Blanshan,1 E. N. Ivanov,3 R. E. Scholten,4 J. Kitching,1 and E. A. Donley1,* 1National Institute of Standards and Technology, Boulder, Colorado 80305, USA 2Centre NationalExpand
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Very-high-precision bound-state spectroscopy near a 85Rb Feshbaeh resonance
We precisely measured the binding energy ɛbind) of a molecular stale near the Feshbach resonance In a 85Rb Bose-Einstein condensate (BEC). Rapid magnetic-field pulses induced coherent atom-moleculeExpand
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Fe b 20 03 Very high precision bound state spectroscopy near a 85 Rb Feshbach resonance
We precisely measured the binding energy (ǫbind) of a molecular state near the Feshbach resonance in a Rb Bose-Einstein condensate (BEC). Rapid magnetic field pulses induced coherent atommoleculeExpand
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Glass-blown spherical microcells for chip-scale atomic devices
Abstract This paper demonstrates spherical vapor cells intended to be used in chip-scale atomic devices. A micro glass blowing process is introduced, in which multiple glass spheres areExpand
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