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Construction of Continuous Collective Energy Landscapes for Large Amplitude Nuclear Many-Body Problems
Paul Carpentier1,2, Nathalie Pillet1,2, Denis Lacroix3
1<a href="https://ror.org/00kn4eb29">CEA, DAM, DIF</a>, 91297 Arpajon, France.
Researchers developed a new method to map continuous energy surfaces for quantum systems. This approach precisely tracks nuclear fission processes, like plutonium-240
Area of Science:
- Quantum mechanics
- Nuclear physics
- Computational chemistry
Background:
- Mapping energy surfaces is crucial for understanding quantum systems.
- Existing methods struggle with continuity and precision for complex systems.
Purpose of the Study:
- To develop a novel protocol for constructing continuous energy surfaces.
- To precisely model quantum system dynamics, including nuclear fission.
Main Methods:
- Augmenting the variational principle with state overlap constraints.
- Ensuring arbitrary precision in the continuity of energy surfaces.
- Applying the method to study the asymmetric fission of Plutonium-240.
Main Results:
- Successfully mapped continuous energy and state surfaces.
- Identified key features of Plutonium-240 fission, including scission.
- Observed a neutron excess in the neck region preceding fission rupture.
Conclusions:
- The proposed approach enables precise, continuous energy surface mapping.
- It offers a powerful tool for studying nuclear reactions and other quantum phenomena.
- The method can connect diverse quantum states, opening new research avenues.
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