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Phys. Rev. A 76, 053417 (2007) [12 pages]

Ultracold Rydberg atoms in a Ioffe-Pritchard trap

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Bernd Hezel1,*, Igor Lesanovsky2,†, and Peter Schmelcher1,3,‡
1Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany
2Institut für Theoretische Physik, Universität Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria
3Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, INF 229, 69120 Heidelberg, Germany

Received 7 May 2007; published 26 November 2007

We discuss the properties of ultracold Rydberg atoms in a Ioffe-Pritchard magnetic field configuration. The derived two-body Hamiltonian unveils how the large size of Rydberg atoms affects their coupling to the inhomogeneous magnetic field. The properties of the compound electronic and center of mass quantum states are thoroughly analyzed. We find very tight confinement of the center of mass motion in two dimensions to be achievable while barely changing the electronic structure compared to the field free case. This paves the way for generating a one-dimensional ultracold Rydberg gas.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.76.053417
DOI:
10.1103/PhysRevA.76.053417
PACS:
32.60.+i, 33.55.Be, 32.10.Dk, 33.80.Ps

*hezel@physi.uni-heidelberg.de

Igor.Lesanovsky@uibk.ac.at

Peter.Schmelcher@pci.uni-heidelberg.de