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Title: Magnetic Trapping of Long-Lived Cold Rydberg Atoms

Abstract

We report on the trapping of long-lived strongly magnetized Rydberg atoms. {sup 85}Rb atoms are laser cooled and collected in a superconducting magnetic trap with a strong bias field (2.9 T) and laser excited to Rydberg states. Collisions scatter a small fraction of the Rydberg atoms into long-lived high-angular momentum 'guiding-center' Rydberg states, which are magnetically trapped. The Rydberg atomic cloud is examined using a time-delayed, position-sensitive probe. We observe magnetic trapping of these Rydberg atoms for times up to 200 ms. Oscillations of the Rydberg-atom cloud in the trap reveal an average magnetic moment of the trapped Rydberg atoms of {approx_equal}-8{mu}{sub B}. These results provide guidance for other Rydberg-atom trapping schemes and illuminate a possible route for trapping antihydrogen.

Authors:
; ; ; ;  [1]
  1. FOCUS Center, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)
Publication Date:
OSTI Identifier:
20699670
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 95; Journal Issue: 24; Other Information: DOI: 10.1103/PhysRevLett.95.243001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANGULAR MOMENTUM; ATOM-ATOM COLLISIONS; COOLING; HADRONIC ATOMS; LASERS; MAGNETIC MOMENTS; OSCILLATIONS; PHOTON-ATOM COLLISIONS; RADIOACTIVE CLOUDS; RUBIDIUM 85; RYDBERG STATES; TIME DELAY; TRAPPING; TRAPS

Citation Formats

Choi, J.-H., Guest, J.R., Povilus, A.P., Hansis, E., and Raithel, G.. Magnetic Trapping of Long-Lived Cold Rydberg Atoms. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.95.243001.
Choi, J.-H., Guest, J.R., Povilus, A.P., Hansis, E., & Raithel, G.. Magnetic Trapping of Long-Lived Cold Rydberg Atoms. United States. doi:10.1103/PhysRevLett.95.243001.
Choi, J.-H., Guest, J.R., Povilus, A.P., Hansis, E., and Raithel, G.. Fri . "Magnetic Trapping of Long-Lived Cold Rydberg Atoms". United States. doi:10.1103/PhysRevLett.95.243001.
@article{osti_20699670,
title = {Magnetic Trapping of Long-Lived Cold Rydberg Atoms},
author = {Choi, J.-H. and Guest, J.R. and Povilus, A.P. and Hansis, E. and Raithel, G.},
abstractNote = {We report on the trapping of long-lived strongly magnetized Rydberg atoms. {sup 85}Rb atoms are laser cooled and collected in a superconducting magnetic trap with a strong bias field (2.9 T) and laser excited to Rydberg states. Collisions scatter a small fraction of the Rydberg atoms into long-lived high-angular momentum 'guiding-center' Rydberg states, which are magnetically trapped. The Rydberg atomic cloud is examined using a time-delayed, position-sensitive probe. We observe magnetic trapping of these Rydberg atoms for times up to 200 ms. Oscillations of the Rydberg-atom cloud in the trap reveal an average magnetic moment of the trapped Rydberg atoms of {approx_equal}-8{mu}{sub B}. These results provide guidance for other Rydberg-atom trapping schemes and illuminate a possible route for trapping antihydrogen.},
doi = {10.1103/PhysRevLett.95.243001},
journal = {Physical Review Letters},
number = 24,
volume = 95,
place = {United States},
year = {Fri Dec 09 00:00:00 EST 2005},
month = {Fri Dec 09 00:00:00 EST 2005}
}