Quantum chaos in ultracold collisions between Yb(¹S0) and Yb(³P2)

Dermot G. Green; Christophe L. Vaillant; Matthew D. Frye; Masato Morita; Jeremy M. Hutson

doi:10.1103/PhysRevA.93.022703

Quantum chaos in ultracold collisions between Yb(¹S₀) and Yb(³P₂)

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

^*Corresponding author for this work

School of Mathematics and Physics

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

330 Downloads (Pure)

Abstract

We calculate and analyze Feshbach resonance spectra for ultracold Yb(¹S₀)+Yb(³P²) 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 distribution arises from superposition of structured spectra associated with individual total angular momenta. In addition, we show that the resonances with respect to magnetic field in the experimentally accessible range of 400 to 2000 G are chaotically distributed, with strong level repulsion that is characteristic of quantum chaos.

Original language	English
Article number	022703
Number of pages	5
Journal	Physical Review A
Volume	93
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.93.022703
Publication status	Published - 04 Feb 2016

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Quantum chaos in ultracold collisions between Yb(¹S0) and Yb(³P2)
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Dermot Green
- d.greenqub.acuk
- School of Mathematics and Physics - Professor
- Centre for Light-Matter Interaction (CLMI)
Person: Academic

Cite this

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abstract = "We calculate and analyze Feshbach resonance spectra for ultracold Yb(1S0)+Yb(3P2) 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 distribution arises from superposition of structured spectra associated with individual total angular momenta. In addition, we show that the resonances with respect to magnetic field in the experimentally accessible range of 400 to 2000 G are chaotically distributed, with strong level repulsion that is characteristic of quantum chaos. ",

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AU - Vaillant, Christophe L.

AU - Frye, Matthew D.

AU - Morita, Masato

AU - Hutson, Jeremy M.

PY - 2016/2/4

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N2 - We calculate and analyze Feshbach resonance spectra for ultracold Yb(1S0)+Yb(3P2) 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 distribution arises from superposition of structured spectra associated with individual total angular momenta. In addition, we show that the resonances with respect to magnetic field in the experimentally accessible range of 400 to 2000 G are chaotically distributed, with strong level repulsion that is characteristic of quantum chaos.

AB - We calculate and analyze Feshbach resonance spectra for ultracold Yb(1S0)+Yb(3P2) 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 distribution arises from superposition of structured spectra associated with individual total angular momenta. In addition, we show that the resonances with respect to magnetic field in the experimentally accessible range of 400 to 2000 G are chaotically distributed, with strong level repulsion that is characteristic of quantum chaos.

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Quantum chaos in ultracold collisions between Yb(¹S0) and Yb(³P2)

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Quantum chaos in ultracold collisions between Yb(¹S₀) and Yb(³P₂)