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

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

2004-06-09

arxiv.org/abs/nucl-th/0406025v1

Physics

Nuclear Physics

Nuclear Theory

4 RevTeX pages, two figures

Scientific paper

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.

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