MHz few-body frequency shift detected in a cold85Rb Rydberg gas
نویسندگان
چکیده
منابع مشابه
Few - body collisions in a quantum gas
2014 This thesis entitled: Few-body collisions in a quantum gas mixture of 40 K and 87 Rb atoms written by Ruth Shewmon Bloom has been approved for the Department of Physics Date The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. Few-body co...
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In a dense gas of 300 microK 85Rb atoms of n approximately 50 ionization occurs on a 100 ns time scale, far too fast to be explained by the motion of the atoms or photoionization by 300 K blackbody radiation. Rapid ionization is accompanied by spectral broadening, with the spectrum becoming continuous at n=88 at a density of 5x10(10)cm(-3). The atomic transitions broaden both smoothly and by th...
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We observe a light-induced frequency shift in single-photon photoassociative spectra of magnetically trapped, quantum degenerate Li. The shift is a manifestation of the coupling between the threshold continuum scattering states and discrete bound levels in the excited-state molecular potential induced by the photoassociation laser. The frequency shift is observed to be linear in the laser inten...
متن کاملFrozen Rydberg Gas:
A frozen Rydberg gas is a sample of atoms with highly excited electronic states and very low temperature. In our experiments, Rb atoms are cooled and trapped in a magneto-optical trap (MOT) (fig.1&2), and excited to the Rydberg states (the principle quantum number n ~30) by pulsed dye lasers (fig.3). In such a system, the density of Rydberg atoms Nd is typically ~10atoms/cm, and the temperature...
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The dipole blockade of Rydberg excitations is a hallmark of the strong interactions between atoms in these high-lying quantum states [M. Saffman, T. G. Walker, and K. Mølmer, Rev. Mod. Phys. 82, 2313 (2010); D. Comparat and P. Pillet, J. Opt. Soc. Am. B 27, A208 (2010)]. One of the consequences of the dipole blockade is the suppression of fluctuations in the counting statistics of Rydberg excit...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2011
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.84.052516