Dissipative quantum dynamics in low-energy collisions of complex nuclei

Diaz-Torres, A., Hinde, D. J., Dasgupta, M., Milburn, G. J. and Tostevin, J. A. (2008) Dissipative quantum dynamics in low-energy collisions of complex nuclei. Physical Review C (Nuclear Physics), 78 6: 064604-1-064604-6. doi:10.1103/PhysRevC.78.064604

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Author Diaz-Torres, A.
Hinde, D. J.
Dasgupta, M.
Milburn, G. J.
Tostevin, J. A.
Title Dissipative quantum dynamics in low-energy collisions of complex nuclei
Journal name Physical Review C (Nuclear Physics)   Check publisher's open access policy
ISSN 0556-2813
Publication date 2008-12-05
Year available 2008
Sub-type Article (original research)
DOI 10.1103/PhysRevC.78.064604
Open Access Status File (Publisher version)
Volume 78
Issue 6
Start page 064604-1
End page 064604-6
Total pages 6
Editor B. F. Gibson
Place of publication United States
Publisher American Physical Society
Language eng
Subject C1
020202 Nuclear Physics
970102 Expanding Knowledge in the Physical Sciences
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.
Keyword heavy ion collisions
deep inelastic collisions
giant resonances
fusion reactions
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID EP/D003628/1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
Centre for Quantum Computer Technology Publications
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Citation counts: TR Web of Science Citation Count  Cited 41 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 42 times in Scopus Article | Citations
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