Fermion Pair Dynamics in Open Quantum Systems

Abstract

Three-body decay is a rare decay mode observed in a handful of unbound rare isotopes. The angular and energy correlations between emitted nucleons are of particular interest, as they provide invaluable information on the interplay between structure and reaction aspects of the nuclear open quantum system. To study the mechanism of two-nucleon emission, we developed a time-dependent approach that allows us to probe emitted nucleons at long times and large distances. We successfully benchmarked the new method against the Green's function approach and applied it to low-energy two-proton and two-neutron decays. In particular, we studied the interplay between initial-state nucleon-nucleon correlations and final-state interaction. We demonstrated that the time evolution of the two-nucleon wave function is strongly impacted by the diproton/dineutron dynamics and that the correlations between emitted nucleons provide invaluable information on the dinucleon structure in the initial-state.

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Cited by in corpus (14)

• Recent Progress in Two-proton Radioactivity
• Fermion Pair Dynamics in Open Quantum Systems
• Probing the Non-exponential Decay Regime in Open Quantum Systems
• Nucleon-nucleon correlations in the extreme oxygen isotopes
• Short range correlations in the extended quantum molecular dynamics model
• Mirror Symmetry Breaking Disclosed in the Decay of Three-Proton Emitter 20Al
• Gamow shell model description of the radiative capture reaction ${}^8$Li$(n,\gamma )$${}^9$Li
• Time-dependent Dirac equation applied to one-proton radioactive emission
• Drastic change in inelastic scattering depending on the development of dineutron correlation in ${}^{10}$Be
• A Vision for the Science of Rare Isotopes
• Dineutron in the $2_1^{+}$ state of ${}^6$He
• Exploring the possible two-proton radioactivity of ${}^{38,39}$Ti
• Radii of proton emitters
• Structure evolution of ground and excited states in the exotic nucleus ${}^{22}$Al