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Extension through time-smoothing of the time-dependent mean field theory: R. Balian, Service de Physique Théorique, CEA, Centre de Saclay, F-91191 Gif-Sur-Yvette Cedex, France; and M. Veneroni, Division de Physique Théorique, Institut de Physique Nucléaire, F-91406 Orsay Cedex, France

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
79 KB
Volume
135
Category
Article
ISSN
0003-4916

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📜 SIMILAR VOLUMES

Correlations and fluctuations in static
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
📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 208 KB

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 sp

Lyapunov stability and poisson structure
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
📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 72 KB

## Abstracts of Papers to Appear in Future Issues Relativistic Boltzmann Theory in D + 1 Spacetime Dimensions.

Time-dependent variational principle for
Time-dependent variational principle for the expectation value of an observable: Mean-field applications: Roger Balian, Service de Physique Théorique, CEA, Saclay, 91191 Gif sur Yvette, France, and Marcel Vénéroni, Division de Physique Théorique, Institut de Physique Nucléaire, 91406 Orsay, France
📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 43 KB

The linear plus Coulomb potential V(r) =ar-b/r is considered. The first-, third, and fifth-order phase-integral formulas for expectation values of integer powers of r are expressed in terms of complete elliptic integrals. It is pointed out how these results can be used to calculate the probability

The hydrogen atom in strong magnetic fie
The hydrogen atom in strong magnetic fields: Summation of the weak field series expansion: J. C. Le Guillou. Laboratoire de Physique Théorique et Hautes Energies, Université Paris VI, 75230 Paris Cedex 05, France; and J. Zinn-Justin. Service de Physique Théorique, Centre d'Etudes Nucléaires de Saclay, 91191 Gif-sur-Yvette, France
📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 74 KB

Using the weak field expansion, we have calculated the groundstate energy of the hydrogen atom in a magnetic field for values of the field up to about 10" G. The perturbative expansion has been summed by an order-dependent mapping method. Results are compared with previous calculations. This method