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Correlations and fluctuations in static and dynamic mean-field approaches: Roger Balian. Service de Physique Théorique de Saclay, F-91191 Gif-sur-Yvette Cedex, France; and Marcel Vénéroni. Division de Physique Théorique, Institut de Physique Nucléaire, F-91406 Orsay Cedex, France

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
208 KB
Volume
216
Category
Article
ISSN
0003-4916

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✦ Synopsis

We investigate the effect of the compact Hilbert space associated to the spin degree of freedom on the Husimi distributions of a spin-boson system (maser model). In the classical limit, the phase space associated to such a degree of freedom is Iimited to a circle of radius ,,/% (J being the total spin). Therefore for high enough energies the classical trajectories exhibit many self crossings and cusps. In this work we show that such characteristic behavior is also reflected in the corresponding quantum regime. Marked intensity enhancements are found.

Chaos in a Spin-Boson

System: Classical Analysis.

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Lyapunov stability and poisson structure of the thermal TDHF and RPA equations: Roger Balian. Service de Physique Théorique de Saclay, F-91191 Gif-sur-Yvette Cedex, France; and Marcel Vénéroni. Division de Physique Théorique, Institut de Physique Nucléaire, 91406 Orsay Cedex, France
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