Resonant electric dipole-dipole interactions between cold Rydberg atoms in a magnetic field
K Afrousheh, P Bohlouli-Zanjani, JD Carter… - Physical Review A …, 2006 - APS
K Afrousheh, P Bohlouli-Zanjani, JD Carter, A Mugford, JDD Martin
Physical Review A—Atomic, Molecular, and Optical Physics, 2006•APSLaser-cooled Rb 85 atoms were optically excited to 46 d 5∕ 2 Rydberg states. A microwave
pulse transferred a fraction of the atoms to the 47 p 3∕ 2 Rydberg state. The resonant
electric dipole-dipole interactions between atoms in these two states were probed using the
linewidth of the two-photon microwave transition 46 d 5∕ 2-47 d 5∕ 2. The presence of a
weak magnetic field≈ 0.5 G reduced the observed line broadening, indicating that the
interaction is suppressed by the field. The field removes some of the energy degeneracies …
pulse transferred a fraction of the atoms to the 47 p 3∕ 2 Rydberg state. The resonant
electric dipole-dipole interactions between atoms in these two states were probed using the
linewidth of the two-photon microwave transition 46 d 5∕ 2-47 d 5∕ 2. The presence of a
weak magnetic field≈ 0.5 G reduced the observed line broadening, indicating that the
interaction is suppressed by the field. The field removes some of the energy degeneracies …
Laser-cooled atoms were optically excited to Rydberg states. A microwave pulse transferred a fraction of the atoms to the Rydberg state. The resonant electric dipole-dipole interactions between atoms in these two states were probed using the linewidth of the two-photon microwave transition . The presence of a weak magnetic field reduced the observed line broadening, indicating that the interaction is suppressed by the field. The field removes some of the energy degeneracies responsible for the resonant interaction, and this is the basis for a quantitative model of the resulting suppression. A technique for the calibration of magnetic field strengths using the one-photon transition is also presented.
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