Geodesic
Evolution Operator for a Quantum Pendulum
Teoretičeskaâ i matematičeskaâ fizika, Tome 138 (2004) no. 1, pp. 35-40 Cet article a éte moissonné depuis la source Math-Net.Ru

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We conjecture one remarkable relation for infinite series in the simple Weyl algebra. This relation expresses an evolution operator for a quantum pendulum via its Hamiltonian.
Keywords: simple Weyl algebra, compact quantum dilogarithm. 
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S. M. Sergeev. Evolution Operator for a Quantum Pendulum. Teoretičeskaâ i matematičeskaâ fizika, Tome 138 (2004) no. 1, pp. 35-40. http://geodesic.mathdoc.fr/item/TMF_2004_138_1_a2/

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