Dipolar Rydberg-atom gas prepared by adiabatic passage through an avoided crossing

Abstract

The passage of cold cesium 49S${}_{1/2}$ Rydberg atoms through an electric-field-induced multi-level avoided crossing with nearby hydrogen-like Rydberg levels is employed to prepare a cold, dipolar Rydberg atom gas. When the electric field is ramped through the avoided crossing on time scales on the order of 100~ns or slower, the 49S${}_{1/2}$ population adiabatically transitions into high-\emph{l} Rydberg Stark states. The adiabatic state transformation results in a cold gas of Rydberg atoms with large electric dipole moments. After a waiting time of about $1\mu$s and at sufficient atom density, the adiabatically transformed highly dipolar atoms become undetectable, enabling us to discern adiabatic from diabatic passage behavior through the avoided crossing. We attribute the state-selectivity to $m$-mixing collisions between the dipolar atoms. The data interpretation is supported by numerical simulations of the passage dynamics and of binary $m$-mixing collisions.

arXiv comment9 pages, 6 figures

References in corpus (16)

• Quantum information with Rydberg atoms
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Fast quantum gates for neutral atoms
• Observation of Rydberg blockade between two atoms
• Demonstration of a neutral atom controlled-NOT quantum gate
• Observation of collective excitation of two individual atoms in the Rydberg blockade regime
• Local Blockade of Rydberg Excitation in an Ultracold Gas
• Information and Computation: Classical and Quantum Aspects
• Dipole blockade in a cold Rydberg atomic sample
• Mesoscopic Rydberg Gate based on Electromagnetically Induced Transparency
• Giant electro-optic effect using polarizable dark states
• Electric-field induced dipole blockade with Rydberg atoms
• Entangling single and $N$ atom qubits for fast quantum state detection and transmission
• Dephasing of multiparticle Rydberg excitations for fast entanglement generation
• Fermionic collective excitations in a lattice gas of Rydberg atoms
• Förster interaction induced phase shift in a pair state interferometer

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• Emergence of Spatial Order in Highly Interacting Rydberg Gases