Magnetic trapping of ultracold Rydberg atoms in low angular momentum states

Abstract

We theoretically investigate the quantum properties of nS, nP, and nD Rydberg atoms in a magnetic Ioffe-Pritchard trap. In particular, it is demonstrated that the two-body character of Rydberg atoms significantly alters the trapping properties opposed to point-like particles with identical magnetic moment. Approximate analytical expressions describing the resulting Rydberg trapping potentials are derived and their validity is confirmed for experimentally relevant field strengths by comparisons to numerical solutions of the underlying Schroedinger equation. In addition to the electronic properties, the center of mass dynamics of trapped Rydberg atoms is studied. In particular, we analyze the influence of a short-time Rydberg excitation, as required by certain quantum-information protocols, on the center of mass dynamics of trapped ground state atoms. A corresponding heating rate is derived and the implications for the purity of the density matrix of an encoded qubit are investigated.

13 pages, 6 figures

References in corpus (9)

• Evidence for coherent collective Rydberg excitation in the strong blockade regime
• Electric-field induced dipole blockade with Rydberg atoms
• Spatially resolved observation of dipole-dipole interaction between Rydberg atoms
• Rabi oscillations and excitation trapping in the coherent excitation of a mesoscopic frozen Rydberg gas
• A lattice of microtraps for ultracold atoms based on patterned magnetic films
• Controlling ultracold Rydberg atoms in the quantum regime
• One-dimensional Rydberg Gas in a Magnetoelectric Trap
• Ultracold Rydberg Atoms in a Ioffe-Pritchard Trap
• Exploiting the composite character of Rydberg atoms for cold atom trapping

Cited by in corpus (1)

• Dressing of Ultracold Atoms by their Rydberg States in a Ioffe-Pritchard Trap