Damped collective motion of isolated many body systems within a variational approach to functional integrals

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Two improvements with respect to previous formulations are presented for the calculation of the partition function $\mathcal{Z}$ of small, isolated and interacting many body systems. By including anharmonicities and employing a variational approach quantum effects can be treated even at very low temperatures. A method is proposed of how to include collisional damping. Finally, our approach is applied to the calculation of the decay rate of metastable systems.
4 RevTeX pages, two figures

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Nuclear Theory, Mesoscale and Nanoscale Physics, Nuclear Experiment

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http://salesiana.dossiersoluciones.com/handle/123456789/82242

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/0406025
 http://arxiv.org/abs/nucl-th/0406025

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arXiv