Resonant electric dipole-dipole interactions between cold Rydberg atoms in a magnetic field

Abstract

Laser cooled Rb atoms were optically excited to 46d Rydberg states. A microwave pulse transferred a fraction of the atoms to the 47p 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 46d-47d. The presence of a weak magnetic field (approximately 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 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 34s-34p one-photon transition is also presented.

Accepted for publication in Physical Review A

References in corpus (10)

• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Fast quantum gates for neutral atoms
• Local Blockade of Rydberg Excitation in an Ultracold Gas
• Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg Atoms
• Engineering single atom and single photon sources from entangled atomic ensembles
• Spectroscopic observation of resonant electric dipole-dipole interactions between cold Rydberg atoms
• Autler-Townes spectroscopy of the $5S_{1/2}-5P_{3/2}-44D$ cascade of cold ${}^{85}$Rb atoms
• Applicability of Rydberg atoms to quantum computers
• Tensorial analysis of the long-range interaction between metastable alkaline-earth atoms
• Resonant Processes in a Frozen Gas

Cited by in corpus (17)

• Quantum information with Rydberg atoms
• Evidence for coherent collective Rydberg excitation in the strong blockade regime
• Consequences of Zeeman Degeneracy for van der Waals Blockade between Rydberg Atoms
• Enhancement of Rydberg atom interactions using ac Stark shifts
• Magnetic-field-driven localization of light in a cold-atom gas
• Optical transfer cavity stabilization using current-modulated injection-locked diode lasers
• Driven-dissipative dynamics of a strongly interacting Rydberg gas
• Dynamics of Low-Density Ultracold Rydberg Gases
• Critical Temperature of Weakly Interacting Dipolar Condensates
• Determination of the Rb ng-series quantum defect by electric-field-induced resonant energy transfer between cold Rydberg atoms
• Bose-Einstein Condensation Temperature of Dipolar Gas in Anisotropic Harmonic Trap
• Investigation of cold Rb Rydberg atoms in a magneto-optical trap
• ac electric-field-induced resonant energy transfer between cold Rydberg atoms
• Effect of photoions on the line shapes of the Förster resonance and microwave transitions in cold rubidium Rydberg atoms
• Interaction-Enhanced Imaging of Rydberg P states
• Red- and blue-detuned magneto-optical trapping with liquid crystal variable retarders
• Effect of impurities on the transition temperature of a dilute dipolar tapped Bose gase