1988
DOI: 10.1002/andp.19885000811
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Quantum Statistics of the Toda Oscillator in the Wigner Function Formalism

Abstract: A b s t r a c t . Classical and quantum mechanical Toda systems (Toda molecules, Toda lattices, Toda quantum fields) recently found growing interest as nonlinear systems showing solitons and chaos. I n this paper the statistical thermodynamics of a system of quantum mechanical Toda oscillators characterized by a potential energy V(p) = V,, cos h q is treated within the Wigner function formslism (phase space formalism of quantum statistics). The partition function is given as a Wigner-Kirkwood series expansion … Show more

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Cited by 2 publications
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“…The part Z1 of the partition function including quantum and relativistic corrections as explained above can be expressed as Formulae (20) and (21) yield in the nonrelativistic limit kT<< me2 the correct partition function of [23]. The evaluation of higher-order relativistic and quantum corrections is now straightforward.…”
mentioning
confidence: 98%
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“…The part Z1 of the partition function including quantum and relativistic corrections as explained above can be expressed as Formulae (20) and (21) yield in the nonrelativistic limit kT<< me2 the correct partition function of [23]. The evaluation of higher-order relativistic and quantum corrections is now straightforward.…”
mentioning
confidence: 98%
“…There exist a few papers on quantum statistics of Toda chains [211 and Toda fields [221. The nonrelativistic phase space quantum statistics of the symmetric Toda oscillator with (18) is treated in [23]. The dynamics of nonquantum relativistic Toda lattices is the topic of [24-261.…”
mentioning
confidence: 99%