Electrostatic Moments of Molecules
نویسندگان
چکیده
منابع مشابه
Electrostatic Trapping of Ultracold Polar Molecules
This thesis describes the progress made in the production, spectroscopic characterization, and confinement of ultracold, polar NaCs molecules. A two-species magneto-optical trap (MOT) for the simultaneous cooling and trapping of sodium and cesium atoms is utilized for the creation of ultracold NaCs molecules via photoassociation. The molecules are detected via resonance-enhanced multi-photon io...
متن کاملElectrostatic trapping of metastable NH molecules
We report on the Stark deceleration and electrostatic trapping of NH (a ∆) radicals. In the trap, the molecules are excited on the spin-forbidden A Π ← a ∆ transition and detected via their subsequent fluorescence to the X Σ ground state. The 1/e trapping time is 1.4 ± 0.1 s, from which a lower limit of 2.7 s for the radiative lifetime of the a ∆, v = 0, J = 2 state is deduced. The spectral pro...
متن کاملRelationships between dipole moments of diatomic molecules.
The dipole moment is one of the most important physical properties of a molecule. We present a combination rule for the dipole moments of related diatomic molecules. For molecules AB, AX, BY, and XY from two different element groups in the periodic table, if their elements make a small parallelogram, reliable predictions can be obtained. Our approach is particularly useful for systems with heav...
متن کاملCollisional dynamics of ultracold OH molecules in an electrostatic field
Ultracold collisions of polar OH molecules are considered in the presence of an electrostatic field. The field exerts a strong influence on both elastic and state-changing inelastic collision rate constants, leading to clear experimental signatures that should help disentangle the theory of cold molecule collisions. Based on the collision rates, we discuss the prospects for evaporative cooling ...
متن کاملElectrostatic confinement and manipulation of DNA molecules for genome analysis
Very large DNA molecules enable comprehensive analysis of complex genomes, such as human, cancer, and plants because they span across sequence repeats and complex somatic events. When physically manipulated, or analyzed as single molecules, long polyelectrolytes are problematic because of mechanical considerations that include shear-mediated breakage, dealing with the massive size of these coil...
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ژورنال
عنوان ژورنال: Nature
سال: 1926
ISSN: 0028-0836,1476-4687
DOI: 10.1038/118555a0