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Spectroscopic observation of resonant electric dipole-dipole interactions between cold Rydberg atoms

K. Afrousheh·P. Z. Bohlouli·D. Vagale·A. Mugford·M. Fedorov·J. D. D. Martin
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Abstract

Resonant electric dipole-dipole interactions between cold Rydberg atoms were observed using microwave spectroscopy. Laser-cooled Rb atoms in a magneto-optical trap were optically excited to 45d Rydberg states using a pulsed laser. A microwave pulse transferred a fraction of these Rydberg atoms to the 46p state. A second microwave pulse then drove atoms in the 45d state to the 46d state, and was used as a probe of interatomic interactions. The spectral width of this two-photon probe transition was found to depend on the presence of the 46p atoms, and is due to the resonant electric dipole-dipole interaction between 45d and 46p Rydberg atoms.

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K. Afrousheh, P. Z. Bohlouli, D. Vagale, A. Mugford, M. Fedorov, J. D. D. Martin. 2004-11-08. Spectroscopic observation of resonant electric dipole-dipole interactions between cold Rydberg atoms. https://doi.org/10.1103/physrevlett.93.233001

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