Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 54: Poster 3

Q 54.70: Poster

Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II

Manipulation of nuclear linewidths by coherent control and cooperative effects — •Sumanta Das, Adriana Pálffy, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany

Coherent manipulation of electronic states in atomic and molecular systems have led to several fascinating applications in varied branches of physics. Coherent control techniques for nuclear states can be of tremendous advantage, in particular for metrology and quantum computation given the reduced sensitivity of nuclei system to the environment due to screening by the atomic electrons. However extremely narrow linewidths make it difficult to probe nuclei directly by means of atomic spectroscopic techniques. Here we investigate possibilities to manipulate the linewidths of nuclei. One direction involves the hyperfine coupling between the nuclear and electronic degrees of freedom to effect the absorption-emission spectra for the nuclear transitions by coherent driving the corresponding electronic transitions [1]. Another direction is related to collective phenomena such as super- and subradiance [2] in a dense sample of nuclei to modify the linewidth of the nuclear transition.

[1] O. Kocharovskaya, R. Kolesov and Y. Rostovtsev, Phys. Rev. Lett. 82, 3593 (1999).

[2] R. H. Dicke, Phys. Rev. B 89, 472 (1953).