Absence of decoherence in the complex potential approach to nuclear scattering
arXiv:1005.0096 · doi:10.1103/PhysRevC.81.041603
Abstract
Time-dependent density-matrix propagation is used to demonstrate, in a schematic model of an open quantum system, that the complex potential approach and the Lindblad dissipative dynamics are \emph{not} equivalent. While the former preserves coherence, it is destroyed in the Lindblad dissipative dynamics. Quantum decoherence is the key aspect that makes the difference between the two approaches, indicating that the complex potential model is inadequate for a consistent description of open quantum-system dynamics. It is suggested that quantum decoherence should always be explicitly included when modelling low-energy nuclear collision dynamics within a truncated model space of reaction channels.
Accepted as a Rapid Communication in PRC
References in corpus (10)
- Decoherence, einselection, and the quantum origins of the classical
- Quantum Tunneling in Nuclear Fusion
- Decoherence of matter waves by thermal emission of radiation
- Hindrance of heavy-ion fusion due to nuclear incompressibility
- Role of Long-Range Correlations on the Quenching of Spectroscopic Factors
- Signature of smooth transition from diabatic to adiabatic states in heavy-ion fusion reactions at deep subbarrier energies
- Dissipative quantum dynamics in low-energy collisions of complex nuclei
- A new insight into the observation of spectroscopic strength reduction in atomic nuclei: implication for the physical meaning of spectroscopic factors
- The Decoherence Time in High Energy Heavy Ion Collisions
- Exploring quantum dynamics in an open many-body system: Transition to superradiance
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- Non-collective excitations in low-energy heavy-ion reactions: applicability of the random-matrix model
- Dissipative Quantum Transport in Macromolecules: An Effective Field Theory Approach
- Formulae for partial widths derived from the Lindblad equation