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Feshbach Spectroscopy of Cs Atom Pairs in Optical Tweezers (2022)
Journal Article
Brooks, R. V., Guttridge, A., Frye, M. D., Ruttley, D. K., Spence, S., Hutson, J. M., & Cornish, S. L. (2022). Feshbach Spectroscopy of Cs Atom Pairs in Optical Tweezers. New Journal of Physics, 24, Article 113051. https://doi.org/10.1088/1367-2630/ac99f6

We prepare pairs of 133Cs atoms in a single optical tweezer and perform Feshbach spectroscopy for collisions of atoms in the states (f = 3, mf = ±3). We detect enhancements in pair loss using a detection scheme where the optical tweezers are repeated... Read More about Feshbach Spectroscopy of Cs Atom Pairs in Optical Tweezers.

Observation of magnetic Feshbach resonances between Cs and 173Yb (2022)
Journal Article
Franzen, T., Guttridge, A., Wilson, K. E., Segal, J., Frye, M. D., Hutson, J. M., & Cornish, S. L. (2022). Observation of magnetic Feshbach resonances between Cs and 173Yb. Physical Review Research, 4(4), Article 043072. https://doi.org/10.1103/physrevresearch.4.043072

We report the observation of magnetic Feshbach resonances between 173 Yb and 133 Cs . In a mixture of Cs atoms prepared in the ( f = 3 , m f = 3 ) state and unpolarized fermionic 173 Yb , we observe resonant atom loss due to two sets of magnetic Fesh... Read More about Observation of magnetic Feshbach resonances between Cs and 173Yb.

Diatomic-py: A Python module for calculating the rotational and hyperfine structure of 1Σ molecules (2022)
Journal Article
Blackmore, J. A., Gregory, P. D., Hutson, J. M., & Cornish, S. L. (2023). Diatomic-py: A Python module for calculating the rotational and hyperfine structure of 1Σ molecules. Computer Physics Communications, 282, Article 108512. https://doi.org/10.1016/j.cpc.2022.108512

We present a computer program to calculate the quantised rotational and hyperfine energy levels of diatomic molecules in the presence of dc electric, dc magnetic, and off-resonant optical fields. Our program is applicable to the bialkali molecules us... Read More about Diatomic-py: A Python module for calculating the rotational and hyperfine structure of 1Σ molecules.

Interaction potential for NaCs for ultracold scattering and spectroscopy (2022)
Journal Article
Brookes, S. G. H., & Hutson, J. M. (2022). Interaction potential for NaCs for ultracold scattering and spectroscopy. The Journal of Physical Chemistry A, 126(25), 3987-4001. https://doi.org/10.1021/acs.jpca.2c01810

We obtain the interaction potential for NaCs by fitting to experiments on ultracold scattering and spectroscopy in optical tweezers. The central region of the potential has been accurately determined from Fourier-Transform spectroscopy at higher temp... Read More about Interaction potential for NaCs for ultracold scattering and spectroscopy.

Improved characterization of Feshbach resonances and interaction potentials between 23Na and 87Rb atoms (2022)
Journal Article
Guo, Z., Jia, F., Zhu, B., Li, L., Hutson, J. M., & Wang, D. (2022). Improved characterization of Feshbach resonances and interaction potentials between 23Na and 87Rb atoms. Physical Review A, 105(2), Article 023313. https://doi.org/10.1103/physreva.105.023313

The ultracold mixture of 23Na and 87Rb atoms has become an important system for investigating physics in Bose-Bose atomic mixtures and for forming ultracold ground-state polar molecules. In this work, we provide an improved characterization of the mo... Read More about Improved characterization of Feshbach resonances and interaction potentials between 23Na and 87Rb atoms.

Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb(3P) atoms (2022)
Journal Article
Mukherjee, B., Frye, M. D., & Hutson, J. M. (2022). Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb(3P) atoms. Physical Review A, 105(2), Article 023306. https://doi.org/10.1103/physreva.105.023306

We have investigated magnetically tunable Feshbach resonances in ultracold collisions of Rb with Yb in its metastable 3P2 and 3P0 states, using coupled-channel scattering and bound-state calculations. For the 3P2 state, we find sharp resonances when... Read More about Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb(3P) atoms.