Optimal trapping wavelengths of Cs 2 molecules in an optical lattice

R. Vexiau, N. Bouloufa, M. Aymar, J.G. Danzl, M. Mark, H. Nägerl, O. Dulieu, European Physical Journal D 65 (2011) 243–250.


Journal Article | Published | English
Author
Vexiau, Romain; Bouloufa, Nadia; Aymar, Mireille; Danzl, Johann GIST Austria ; Mark, Manfred; Nägerl, Hanns; Dulieu, Olivier
Abstract
The present paper aims at finding optimal parameters for trapping of Cs 2 molecules in optical lattices, with the perspective of creating a quantum degenerate gas of ground-state molecules. We have calculated dynamic polarizabilities of Cs 2 molecules subject to an oscillating electric field, using accurate potential curves and electronic transition dipole moments. We show that for some particular wavelengths of the optical lattice, called "magic wavelengths", the polarizability of the ground-state molecules is equal to the one of a Feshbach molecule. As the creation of the sample of ground-state molecules relies on an adiabatic population transfer from weakly-bound molecules created on a Feshbach resonance, such a coincidence ensures that both the initial and final states are favorably trapped by the lattice light, allowing optimized transfer in agreement with the experimental observation.
Publishing Year
Date Published
2011-11-01
Journal Title
European Physical Journal D
Acknowledgement
We thank E. Haller for important contributions to the experimental work and R. Grimm for generous support. We acknowledge funding by the Austrian Science Fund (FWF) within project Quantum Gases of Ground-State Molecules, project number P 21555-N20.
Volume
65
Issue
1-2
Page
243 - 250
IST-REx-ID

Cite this

Vexiau R, Bouloufa N, Aymar M, et al. Optimal trapping wavelengths of Cs 2 molecules in an optical lattice. European Physical Journal D. 2011;65(1-2):243-250. doi:10.1140/epjd/e2011-20085-4
Vexiau, R., Bouloufa, N., Aymar, M., Danzl, J. G., Mark, M., Nägerl, H., & Dulieu, O. (2011). Optimal trapping wavelengths of Cs 2 molecules in an optical lattice. European Physical Journal D. Springer. https://doi.org/10.1140/epjd/e2011-20085-4
Vexiau, Romain, Nadia Bouloufa, Mireille Aymar, Johann G Danzl, Manfred Mark, Hanns Nägerl, and Olivier Dulieu. “Optimal Trapping Wavelengths of Cs 2 Molecules in an Optical Lattice.” European Physical Journal D. Springer, 2011. https://doi.org/10.1140/epjd/e2011-20085-4.
R. Vexiau et al., “Optimal trapping wavelengths of Cs 2 molecules in an optical lattice,” European Physical Journal D, vol. 65, no. 1–2. Springer, pp. 243–250, 2011.
Vexiau R, Bouloufa N, Aymar M, Danzl JG, Mark M, Nägerl H, Dulieu O. 2011. Optimal trapping wavelengths of Cs 2 molecules in an optical lattice. European Physical Journal D. 65(1–2), 243–250.
Vexiau, Romain, et al. “Optimal Trapping Wavelengths of Cs 2 Molecules in an Optical Lattice.” European Physical Journal D, vol. 65, no. 1–2, Springer, 2011, pp. 243–50, doi:10.1140/epjd/e2011-20085-4.
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