2000
DOI: 10.1038/35020030
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Electrostatic trapping of ammonia molecules

Abstract: The ability to cool and slow atoms with light for subsequent trapping allows investigations of the properties and interactions of the trapped atoms in unprecedented detail. By contrast, the complex structure of molecules prohibits this type of manipulation, but magnetic trapping of calcium hydride molecules thermalized in ultra-cold buffer gas and optical trapping of caesium dimers generated from ultra-cold caesium atoms have been reported. However, these methods depend on the target molecules being paramagnet… Show more

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Cited by 469 publications
(419 citation statements)
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“…They are rather deep (on the order of 1 K), and by changing the electrode geometries or the applied voltages, a variety of trapping potentials can be created. 12a, 18,[30][31][32][33][34] The ability to trap molecules in their hfs states is of special importance because all molecular ground states as well as the majority of states of larger molecules are hfs. This is important for techniques that provide further cooling such as evaporative cooling, a key step in reaching quantum degeneracy.…”
Section: Introductionmentioning
confidence: 99%
“…They are rather deep (on the order of 1 K), and by changing the electrode geometries or the applied voltages, a variety of trapping potentials can be created. 12a, 18,[30][31][32][33][34] The ability to trap molecules in their hfs states is of special importance because all molecular ground states as well as the majority of states of larger molecules are hfs. This is important for techniques that provide further cooling such as evaporative cooling, a key step in reaching quantum degeneracy.…”
Section: Introductionmentioning
confidence: 99%
“…RbCs [2]. Alternatively, cold dilute gas ensembles can be created by buffer-gas loading [3] or electric-field manipulation of naturally occurring molecules like ND 3 [4,5], H 2 CO [6], metastables like CO [7] or radicals like YbF [8], OH [9], NH [10]. So far all the cold molecules made available with electric-field-based methods have a Stark effect (in their relevant states) which is predominantly linear in the important range up to 150 kV/cm.…”
mentioning
confidence: 99%
“…Here, molecules were decelerated from 285 m/s to 53 m/s. This final velocity is very close to typical velocities that are used to load electrostatic traps [3,30,31]. A slight increase of the phase angle would have been sufficient to achieve this but the detection of the particles would have been very difficult due to dispersion of the bunches during the time-of-flight from the end of the decelerator to the interaction zone.…”
Section: Deceleration and 3d Effectsmentioning
confidence: 64%