Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions

Diaz-Torres, A., Hinde, D. J., Dasgupta, M., Milburn, G. J. and Tostevin, J. A. (2009). Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions. In: K. Ernst Rehm, Birger B. Back, Henning Esbensen and C.J. (Kim) Lister, FUSION08: New Aspects of Heavy Ion Collisions Near the Coulomb Barrier. Fusion08: International Conference on New Aspects of Heavy Ion Collisions Near the Coulomb Barrier, Chicago, IL, USA, (44-51). 22-26 September, 2008. doi:10.1063/1.3108859


Author Diaz-Torres, A.
Hinde, D. J.
Dasgupta, M.
Milburn, G. J.
Tostevin, J. A.
Title of paper Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions
Conference name Fusion08: International Conference on New Aspects of Heavy Ion Collisions Near the Coulomb Barrier
Conference location Chicago, IL, USA
Conference dates 22-26 September, 2008
Proceedings title FUSION08: New Aspects of Heavy Ion Collisions Near the Coulomb Barrier   Check publisher's open access policy
Journal name AIP Conference Proceedings   Check publisher's open access policy
Place of Publication College Park, MD, United States
Publisher American Institute of Physics
Publication Year 2009
Sub-type Fully published paper
DOI 10.1063/1.3108859
Open Access Status
ISBN 9780735406315
9780735406322
ISSN 0094-243X
1551-7616
Editor K. Ernst Rehm
Birger B. Back
Henning Esbensen
C.J. (Kim) Lister
Volume 1098
Start page 44
End page 51
Total pages 8
Language eng
Formatted Abstract/Summary
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.
Keyword Open quantum system
Dissipation
Decoherence
Lindblad equation
Coupled channels
Quantum tunneling
Fusion
Deep-inelastic collisions
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: Centre for Quantum Computer Technology Publications
 
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