CO2 molecule as a quantum realization of the 1:1:2 resonant swing-spring with monodromy -: art. no. 024302

被引:61
作者
Cushman, RH [1 ]
Dullin, HR
Giacobbe, A
Holm, DD
Joyeux, M
Lynch, P
Sadovskií, DA
Zhilinskií, BI
机构
[1] Univ Utrecht, Inst Math, NL-3508 TA Utrecht, Netherlands
[2] Univ Loughborough, Loughborough LE11 3TU, Leics, England
[3] Univ London Imperial Coll Sci Technol & Med, Dept Math, London SW7 2AZ, England
[4] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[5] Univ Grenoble 1, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France
[6] Met Eireann, Dublin 9, Ireland
[7] Univ Littoral, CNRS, UMR 8101, F-59140 Dunkerque, France
关键词
D O I
10.1103/PhysRevLett.93.024302
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider the wide class of systems modeled by an integrable approximation to the 3 degrees of freedom elastic pendulum with 1:1:2 resonance, or the swing-spring. This approximation has monodromy which prohibits the existence of global action-angle variables and complicates the dynamics. We study the quantum swing-spring formed by bending and symmetric stretching vibrations of the CO2 molecule. We uncover quantum monodromy of CO2 as a nontrivial codimension 2 defect of the three dimensional energy-momentum lattice of its quantum states.
引用
收藏
页码:024302 / 1
页数:4
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