Electron electric-dipole-moment searches based on alkali-metal- or alkaline-earth-metal-bearing molecules
نویسندگان
چکیده
We introduce four new molecules—YbRb, YbCs, YbSr+, and YbBa+—that may prove fruitful in experimental searches for the electric-dipole moment EDM of the electron. These molecules can, in principle, be prepared at extremely low temperatures by photoassociating ultracold atoms and therefore may present an advantage over molecular-beam experiments. Here we discuss properties of these molecules and assess the effective electric fields they contribute to an electron EDM measurement.
منابع مشابه
Electric dipole moments and chemical bonding of diatomic alkali-alkaline earth molecules.
We investigate the properties of alkali-alkaline earth diatomic molecules in the lowest Σ(+) states of the doublet and quartet multiplicity by ab initio calculations. In all sixteen cases studied, the permanent electric dipole moment points in opposite directions for the two spin states. This peculiarity can be explained by molecular orbital theory. We further discuss dissociation energies and ...
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