Detecting quadrupole interactions in ultracold Fermi gases

Lahrz M, Lemeshko M, Sengstock K, Becker C, Mathey L. 2014. Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. 89(4), 043616.


Journal Article | Published | English
Author
Lahrz, Martin; Lemeshko, MikhailIST Austria ; Sengstock, Klaus; Becker, Christoph; Mathey, Ludwig
Abstract
We propose to detect quadrupole interactions of neutral ultracold atoms via their induced mean-field shift. We consider a Mott insulator state of spin-polarized atoms in a two-dimensional optical square lattice. The quadrupole moments of the atoms are aligned by an external magnetic field. As the alignment angle is varied, the mean-field shift shows a characteristic angular dependence, which constitutes the defining signature of the quadrupole interaction. For the 3P2 states of Yb and Sr atoms, we find a frequency shift of the order of tens of Hertz, which can be realistically detected in experiment with current technology. We compare our results to the mean-field shift of a spin-polarized quasi-two-dimensional Fermi gas in continuum.
Publishing Year
Date Published
2014-04-23
Journal Title
Physical Review A - Atomic, Molecular, and Optical Physics
Volume
89
Issue
4
Article Number
043616
IST-REx-ID

Cite this

Lahrz M, Lemeshko M, Sengstock K, Becker C, Mathey L. Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. 2014;89(4). doi:10.1103/PhysRevA.89.043616
Lahrz, M., Lemeshko, M., Sengstock, K., Becker, C., & Mathey, L. (2014). Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.89.043616
Lahrz, Martin, Mikhail Lemeshko, Klaus Sengstock, Christoph Becker, and Ludwig Mathey. “Detecting Quadrupole Interactions in Ultracold Fermi Gases.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2014. https://doi.org/10.1103/PhysRevA.89.043616.
M. Lahrz, M. Lemeshko, K. Sengstock, C. Becker, and L. Mathey, “Detecting quadrupole interactions in ultracold Fermi gases,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 89, no. 4. American Physical Society, 2014.
Lahrz M, Lemeshko M, Sengstock K, Becker C, Mathey L. 2014. Detecting quadrupole interactions in ultracold Fermi gases. Physical Review A - Atomic, Molecular, and Optical Physics. 89(4), 043616.
Lahrz, Martin, et al. “Detecting Quadrupole Interactions in Ultracold Fermi Gases.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 89, no. 4, 043616, American Physical Society, 2014, doi:10.1103/PhysRevA.89.043616.
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