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J. Trost and K. Hornberger
Hund's paradox and the collisional stabilization of chiral molecules
Phys. Rev. Lett 103, 023202 (2009)

Abstract:

We identify the dominant collisional decoherence mechanism which serves to stabilize and super-select the configuration states of chiral molecules. A high-energy description of this effect is compared to the results of the exact molecular scattering problem, obtained by solving the coupled-channel equations. It allows to predict the experimental conditions for observing the collisional suppression of the tunneling dynamics between the left-handed and the right-handed configuration of D2S2 molecules.

2π erratum:
The expression "ωz/2π=176 Hz" should be replaced by "ωz=176 Hz" (or by "ωz/2π=28 Hz"). The results are unaffected by this.

(4 pages, 1 figure)   [ pdf, journal, arXiv:0811.2140 ]

doi:10.1103/PhysRevLett.103.023202            (c) The American Physical Society


See also Charles Day's article about our work:

C. Day
Month-long calculation resolves 82-year-old quantum paradox
Physics Today, Vol. 62, September 2009, pp. 16-17

(2 pages, 2 figures)   [ pdf, journal ]                 (c) American Institute of Physics

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