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Title: Coherent Optical Transfer of Feshbach Molecules to a Lower Vibrational State

Abstract

Using the technique of stimulated Raman adiabatic passage (STIRAP) we have coherently transferred ultracold {sup 87}Rb{sub 2} Feshbach molecules into a more deeply bound vibrational quantum level. Our measurements indicate a high transfer efficiency of up to 87%. Because the molecules are held in an optical lattice with not more than a single molecule per lattice site, inelastic collisions between the molecules are suppressed and we observe long molecular lifetimes of about 1 s. Using STIRAP we have created quantum superpositions of the two molecular states and tested their coherence interferometrically. These results represent an important step towards Bose-Einstein condensation of molecules in the vibrational ground state.

Authors:
; ; ;  [1];  [2];  [1];  [3]
  1. Institut fuer Experimentalphysik, Forschungszentrum fuer Quantenphysik, Universitaet Innsbruck, 6020 Innsbruck (Austria)
  2. Debye Institute, Universiteit Utrecht, 3508 TA Utrecht (Netherlands)
  3. (Austria)
Publication Date:
OSTI Identifier:
20861640
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevLett.98.043201; (c) 2007 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; BOSE-EINSTEIN CONDENSATION; COLLISIONS; GROUND STATES; INELASTIC SCATTERING; LIFETIME; MOLECULES; RUBIDIUM 87; VIBRATIONAL STATES

Citation Formats

Winkler, K., Lang, F., Thalhammer, G., Denschlag, J. Hecker, Straten, P. van der, Grimm, R., and Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck. Coherent Optical Transfer of Feshbach Molecules to a Lower Vibrational State. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.043201.
Winkler, K., Lang, F., Thalhammer, G., Denschlag, J. Hecker, Straten, P. van der, Grimm, R., & Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck. Coherent Optical Transfer of Feshbach Molecules to a Lower Vibrational State. United States. doi:10.1103/PHYSREVLETT.98.043201.
Winkler, K., Lang, F., Thalhammer, G., Denschlag, J. Hecker, Straten, P. van der, Grimm, R., and Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck. Fri . "Coherent Optical Transfer of Feshbach Molecules to a Lower Vibrational State". United States. doi:10.1103/PHYSREVLETT.98.043201.
@article{osti_20861640,
title = {Coherent Optical Transfer of Feshbach Molecules to a Lower Vibrational State},
author = {Winkler, K. and Lang, F. and Thalhammer, G. and Denschlag, J. Hecker and Straten, P. van der and Grimm, R. and Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, 6020 Innsbruck},
abstractNote = {Using the technique of stimulated Raman adiabatic passage (STIRAP) we have coherently transferred ultracold {sup 87}Rb{sub 2} Feshbach molecules into a more deeply bound vibrational quantum level. Our measurements indicate a high transfer efficiency of up to 87%. Because the molecules are held in an optical lattice with not more than a single molecule per lattice site, inelastic collisions between the molecules are suppressed and we observe long molecular lifetimes of about 1 s. Using STIRAP we have created quantum superpositions of the two molecular states and tested their coherence interferometrically. These results represent an important step towards Bose-Einstein condensation of molecules in the vibrational ground state.},
doi = {10.1103/PHYSREVLETT.98.043201},
journal = {Physical Review Letters},
number = 4,
volume = 98,
place = {United States},
year = {Fri Jan 26 00:00:00 EST 2007},
month = {Fri Jan 26 00:00:00 EST 2007}
}