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Chaotic non-ergodic vibrational motion in a polyatomic molecule

โœ Scribed by M.V. Kuz'min; I.V. Nemov; A.A. Stuchebrukhov; V.N. Bagratashvili; V.S. Letokhov

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
486 KB
Volume
124
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

We study the statistical properties of vibrational motion of a highly excited polyatomic molecule. To analyze the chaotic dynamics of a molecule with s degrees of freedom, we use a numerical calculation of the complete spectrum of the Lyapunov characteristic exponents A,(i = 1,. . ., s -1) which determine the hierarchy of relaxation times: qh = X; ' c . . -c -T_ = A;_! ,. In all cases we have found rc,, Q: r_s. This means that for finite observation times ret, < Af,ss < rers some integrals of motion may be not destroyed, and so the chaotic molecular motion can be non-ergodic and the statistical approach inapplicable.

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