Coupled-channels density-matrix approach to low-energy nuclear collision dynamics: A technique for quantifying quantum decoherence effects on reaction observables

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.054617· OSTI ID:21499194

Diaz-Torres, Alexis ^[1]

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1. Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom)

The coupled-channels density-matrix technique for nuclear reaction dynamics, which is based on the Liouville-von Neumann equation with Lindblad dissipative terms, is developed with the inclusion of full angular momentum couplings. It allows a quantitative study of the role and importance of quantum decoherence in nuclear scattering. Formulas of asymptotic observables that can reveal effects of quantum decoherence are given. A method for extracting energy-resolved scattering information from the time-dependent density matrix is introduced. As an example, model calculations are carried out for the low-energy collision of the {sup 16}O projectile on the {sup 154}Sm target.

• OSTI ID: 21499194
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevC.82.054617; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ASYMPTOTIC SOLUTIONS
BOLTZMANN-VLASOV EQUATION
COUPLED CHANNEL THEORY
COUPLINGS
DENSITY MATRIX
EQUATIONS
NUCLEAR REACTIONS
OXYGEN 16 REACTIONS
QUANTUM DECOHERENCE
SAMARIUM 154 TARGET
SCATTERING
TIME DEPENDENCE
DIFFERENTIAL EQUATIONS
HEAVY ION REACTIONS
MATHEMATICAL SOLUTIONS
MATRICES
PARTIAL DIFFERENTIAL EQUATIONS
TARGETS