Optical pumping of trapped neutral molecules by blackbody radiation

Details Optical pumping of trapped neutral molecules by blackbody radiation Optical pumping of trapped neutral molecules by blackbody radiation

2006-12-21

arxiv.org/abs/physics/0612214v2

Phys.Rev.Lett. 98 133001 (2007)

Physics

Atomic Physics

corrected small mistakes; added journal reference.

Scientific paper

10.1103/PhysRevLett.98.133001

Optical pumping by blackbody radiation is a feature shared by all polar molecules and fundamentally limits the time that these molecules can be kept in a single quantum state in a trap. To demonstrate and quantify this, we have monitored the optical pumping of electrostatically trapped OH and OD radicals by room-temperature blackbody radiation. Transfer of these molecules to rotationally excited states by blackbody radiation at 295 K limits the $1/e$ trapping time for OH and OD in the $X^{2}\Pi_{3/2},v''=0,J''=3/2(f)$ state to 2.8 s and 7.1 s, respectively.

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