Precision measurements with polar molecules: the role of the black body radiation

Abstract

In the perspective of the outstanding developments of high-precision measurements of fundamental constants using polar molecules related to ultimate checks of fundamental theories, we investigate the possibly counterproductive role of black-body radiation on a series of diatomic molecules which would be trapped and observed for long durations. We show that the absorption of black-body radiation at room temperature may indeed limit the lifetime of trapped molecules prepared in a well-defined quantum state. Several examples are treated, corresponding to pure rotational absorption, pure vibrational absorption or both. We also investigate the role of a black-body radiation-induced energy shift on molecular levels and how it could affect high-precision frequency measurements.

References in corpus (8)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Multipolar theory of black-body radiation shift of atomic energy levels and its implications for optical lattice clocks
• Laser-trapping of Ra-225 and Ra-226 with repumping by room temperature blackbody radiation
• High-accuracy calculation of black-body radiation shift in ${}^{133}$Cs primary frequency standard
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• Adimensional theory of shielding in ultracold collisions of dipolar rotors
• Quantum Blackbody Thermometry
• Towards improved loading, cooling, and trapping of molecules in magneto-optical traps
• Blackbody thermalization and vibrational lifetimes of trapped polyatomic molecules
• Simulation of Cryogenic Buffer Gas Beams
• Ion loss events in a cold Rb-Ca${}^{+}$ hybrid trap: photodissociation, black-body radiation and non-radiative charge exchange
• Precise Determination of Excited State Rotational Constants and Black-Body Thermometry in Coulomb Crystals of Ca${}^{+}$ and CaH${}^{+}$
• Blackbody Radiation Noise Broadening of Quantum Systems
• Ultracold high-spin $\Sigma$-state polar molecules for new physics searches