Q. Guan
Magic conditions for multiple rotational states of bialkali molecules in optical lattices
Guan, Q.; Cornish, Simon L.; Kotochigova, S.
Abstract
We investigate magic-wavelength trapping of ultracold bialkali molecules in the vicinity of weak optical transitions from the vibrational ground state of the X 1 Σ + potential to low-lying rovibrational states of the b 3 Π 0 potential, focusing our discussion on the 87 Rb 133 Cs molecule in a magnetic field of B = 181 G. We show that a frequency window exists between two nearest-neighbor vibrational poles in the dynamic polarizability where the trapping potential is “near magic” for multiple rotational states simultaneously. We show that the addition of a modest DC electric field of E = 0.13 kV/cm leads to an exact magic-wavelength trap for the lowest three rotational states at a angular-frequency detuning of Δ v ′ = 0 = 2 π × 218.22 GHz from the X 1 Σ + ( v = 0 , J = 0 ) → b 3 Π 0 ( v ′ = 0 , J = 1 ) transition. We derive a set of analytical criteria that must be fulfilled to ensure the existence of such magic frequency windows and present an analytic expression for the position of the frequency window in terms of a set of experimentally measurable parameters. These results should inform future experiments requiring long coherence times on multiple rotational transitions in ultracold polar molecules.
Citation
Guan, Q., Cornish, S. L., & Kotochigova, S. (2021). Magic conditions for multiple rotational states of bialkali molecules in optical lattices. Physical Review A, 103(4), https://doi.org/10.1103/physreva.103.043311
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 19, 2021 |
Online Publication Date | Apr 7, 2021 |
Publication Date | 2021 |
Deposit Date | Apr 9, 2021 |
Publicly Available Date | Sep 23, 2021 |
Journal | Physical Review A |
Print ISSN | 2469-9926 |
Electronic ISSN | 2469-9934 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 103 |
Issue | 4 |
DOI | https://doi.org/10.1103/physreva.103.043311 |
Public URL | https://durham-repository.worktribe.com/output/1249964 |
Related Public URLs | https://arxiv.org/abs/2101.12291 |
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Copyright Statement
Reprinted with permission from the American Physical Society: Guan, Q., Cornish, Simon L. & Kotochigova, S. (2021). Magic conditions for multiple rotational states of bialkali molecules in optical lattices. Physical Review A 103(4). © 2021 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
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