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

Abstract

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. Formulae 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 ${}^{16}$O projectile on the ${}^{154}$Sm target.

7 pages, 4 Figures

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Cited by in corpus (6)

• How the Pauli exclusion principle affects fusion of atomic nuclei
• Systematics of capture and fusion dynamics in heavy-ion collisions
• Role of non-collective excitations in heavy-ion fusion reactions and quasi-elastic scattering around the Coulomb barrier
• Non-collective excitations in low-energy heavy-ion reactions: applicability of the random-matrix model
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• Decoherence in excited atoms by low-energy scattering