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  Realization of Heisenberg models of spin systems with polar molecules in pendular states

Yue, W., Wei, Q., Kais, S., Friedrich, B., & Herschbach, D. (2022). Realization of Heisenberg models of spin systems with polar molecules in pendular states. Physical Chemistry Chemical Physics, 24(41), 25270-25278. doi:10.1039/d2cp00380e.

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2112.14981 (Preprint), 42KB
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2112.14981
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 Creators:
Yue, Wenjing1, Author
Wei, Qi1, Author
Kais, Sabre2, Author
Friedrich, Bretislav3, Author           
Herschbach, Dudley4, Author
Affiliations:
1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China, ou_persistent22              
2Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA, ou_persistent22              
3Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
4Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, USA, ou_persistent22              

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 Abstract: We show that ultracold polar diatomic or linear molecules, oriented in an external electric field and mutually coupled by dipole-dipole interactions, can be used to realize the exact Heisenberg XYZ, XXZ and XY models without invoking any approximation. The two lowest lying excited pendular states coupled by microwave or radio-frequency fields are used to encode the pseudo-spin. We map out the general features of the models by evaluating the models' constants as functions of the molecular dipole moment, rotational constant, strength and direction of the external field as well as the distance between molecules. We calculate the phase diagram for a linear chain of polar molecules based on the Heisenberg models and discuss their drawbacks, advantages, and potential applications.

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Language(s): eng - English
 Dates: 2021-12-302022-01-242022-10-042022-10-062022-11-07
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Physical Chemistry Chemical Physics
  Abbreviation : Phys. Chem. Chem. Phys.
Source Genre: Journal
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Publ. Info: Cambridge, England : Royal Society of Chemistry
Pages: 9 Volume / Issue: 24 (41) Sequence Number: - Start / End Page: 25270 - 25278 Identifier: ISSN: 1463-9076
CoNE: https://pure.mpg.de/cone/journals/resource/954925272413_1