Výsledky vyhledávání - "Butscher, B."

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Highly resolved measurements of Stark-tuned F\'orster resonances between Rydberg atoms

Autor: Nipper, J., Balewski, J. B., Krupp, A. T., Butscher, B., Löw, R., Pfau, T.

We report on experiments exploring Stark-tuned F\"orster resonances between Rydberg atoms with unprecedented resolution in the F\"orster defect. The individual resonances are expected to exhibit different angular dependencies, opening the possibility

Externí odkaz: http://arxiv.org/abs/1201.6210

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Rydberg trimers and excited dimers bound by internal quantum reflection

Autor: Bendkowsky, V., Butscher, B., Nipper, J., Balewski, J., Shaffer, J. P., Löw, R., Pfau, T., Li, W., Stanojevic, J., Pohl, T., Rost, J. M.

Quantum reflection is a pure wave phenomena that predicts reflection of a particle at a changing potential for cases where complete transmission occurs classically. For a chemical bond, we find that this effect can lead to non-classical vibrational t

Externí odkaz: http://arxiv.org/abs/0912.4058

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Investigation of dephasing rates in an interacting Rydberg gas

Autor: Raitzsch, U., Heidemann, R., Weimer, H., Bendkowsky, V., Butscher, B., Kollmann, P., Löw, R., Büchler, H. P., Pfau, T.

Publikováno v: New Journal of Physics 11 (2009) 055014 (13pp)

We experimentally and theoretically investigate the dephasing rates of the coherent evolution of a resonantly driven pseudo spin emersed in a reservoir of pseudo spins. The pseudo spin is realized by optically exciting 87 Rb atoms to a Rydberg state.

Externí odkaz: http://arxiv.org/abs/0811.4185

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Novel binding mechanism for ultra-long range molecules

Autor: Bendkowsky, V., Butscher, B., Nipper, J., Shaffer, J. P., Loew, R., Pfau, T.

Molecular bonds can be divided into four primary types: ionic, covalent, van der Waals and hydrogen bonds. At ultralow temperatures a novel binding type emerges paving the way for novel molecules and ultracold chemistry [1,2]. The underlying mechanis

Externí odkaz: http://arxiv.org/abs/0809.2961

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Giant electro-optic effect using polarizable dark states

Autor: Mohapatra, A. K., Bason, M. G., Butscher, B., Weatherill, K. J., Adams, C. S.

Publikováno v: Nature Physics. 4, 890 (2008)

The electro-optic effect, where the refractive index of a medium is modified by an electric field, is of central importance in non-linear optics, laser technology, quantum optics and optical communications. In general, electro-optic coefficients are

Externí odkaz: http://arxiv.org/abs/0804.3273

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