Coupled-Channels Approach for Dissipative Quantum Dynamics in Near-Barrier Collisions

Diaz-Torres, A, Hinde, DJ, Dasgupta, M, Milburn, GJ and Tostevin, JA (2009) Coupled-Channels Approach for Dissipative Quantum Dynamics in Near-Barrier Collisions In: International Conference on New Aspects of Heavy Ion Collisions Near the Coulomb Barrier, 2008-09-22 - 2008-09-26, Chicago, IL.

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Abstract

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

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Additional Information:	Copyright 20091 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in AIP Conference Proceedings, 1098 44-51 and may be found at A. Diaz-Torres et al., AIP Proc. 1098 44-51 (2009)
Uncontrolled Keywords:	Open quantum system, Dissipation, Decoherence, Lindblad equation, Coupled channels, Quantum tunneling, Fusion, Deep-inelastic collisions, FUSION
Divisions:	Faculty of Engineering and Physical Sciences > Physics
Depositing User:	Symplectic Elements
Date Deposited:	25 Nov 2011 13:04
Last Modified:	23 Sep 2013 18:47
URI:	http://epubs.surrey.ac.uk/id/eprint/7423

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