Coupled-Channels Approach for Dissipative Quantum Dynamics in Near-Barrier Collisions
A. Díaz-Torres, David J. Hinde, M. Dasgupta +6 more
A novel quantum dynamical model based on the dissipative quantum dynamics of open quantum systems is presented. It allows the treatment of both deep‐inelastic processes and quantum tunneling (fusion) within a fully quantum mechanical coupled‐channels approach. Model calculations show the transition from pure state (coherent) to mixed state (decoherent and dissipative) dynamics during a near‐barrier nuclear collision. Energy dissipation, due to irreversible decay of giant‐dipole excitations of the interacting nuclei, results in hindrance of quantum tunneling.
arXiv:0811.1611•AIP conference proceedings•Jan 1, 2009•2 citations