Dissipative quantum dynamics in low-energy collisions of complex nuclei

A. Diaz-Torres*, D. J. Hinde, M. Dasgupta, G. J. Milburn, J. A. Tostevin

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    62 Citations (Scopus)

    Abstract

    Model calculations that include the effects of irreversible, environmental couplings on top of a coupled-channels dynamical description of the collision of two complex nuclei are presented. The Liouville-von Neumann equation for the time evolution of the density matrix of a dissipative system is solved numerically providing a consistent transition from coherent to decoherent (and dissipative) dynamics during the collision. Quantum decoherence and dissipation are clearly manifested in the model calculations. Energy dissipation, due to the irreversible decay of giant-dipole vibrational states of the colliding nuclei, is shown to result in a hindrance of quantum tunneling and fusion.

    Original languageEnglish
    Article number064604
    JournalPhysical Review C - Nuclear Physics
    Volume78
    Issue number6
    DOIs
    Publication statusPublished - 1 Dec 2008

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