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

Christian Rummel; Helmut Hofmann

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arXiv · nucl-th/0406025

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

Christian Rummel·Helmut Hofmann

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Abstract

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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Christian Rummel, Helmut Hofmann. 2004-06-09. Damped collective motion of isolated many body systems within a variational approach to functional integrals. https://arxiv.org/abs/nucl-th/0406025

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