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- Dermot G. Green, Christophe L. Vaillant, Matthew D. Frye, Masato Morita, Jeremy M. Hutson
- 2016

We calculate and analyze Feshbach resonance spectra for ultracold Yb(1 S0) + Yb(3 P2) collisions as a function of an interatomic potential scaling factor λ and external magnetic field. We show that, at zero field, the resonances are distributed randomly in λ, but that signatures of quantum chaos emerge as a field is applied. The random zero-field… (More)

A general computational method for the accurate calculation of rotationally and vibrationally excited states of tetraatomic molecules is developed. The resulting program is particularly appropriate for molecules executing wide-amplitude motions and isomerizations. The program offers a choice of coordinate systems based on Radau, Jacobi, diatom–diatom and… (More)

- Matthew D. Frye, Masato Morita, Christophe L. Vaillant, Dermot G. Green, Jeremy M. Hutson
- 2016

We calculate near-threshold bound states and Feshbach resonance positions for atom + rigid-rotor models of the highly anisotropic systems Li+CaH and Li+CaF. We perform statistical analysis on the resonance positions to compare with the predictions of random matrix theory. For Li+CaH with total angular momentum J = 0 we find fully chaotic behavior in both… (More)

- Johann G. Danzl, Manfred J. Mark, Elmar Haller, Mattias Gustavsson, Russell Hart, Jesus Aldegunde +2 others
- 2009

Control over all internal and external degrees of freedom of molecules at the level of single quantum states will enable a series of fundamental studies in physics and chemistry 1, 2. In particular, samples of ground-state molecules at ultralow temperatures and high number densities will allow novel quantum-gas studies 3 and future applications in quantum… (More)

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