An intrinsic-state formalism for the Interacting Boson-Fermion Model with configuration mixing
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866913932166299648 |
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| author | Maya-Barbecho, E. García-Ramos, J. E. |
| author_facet | Maya-Barbecho, E. García-Ramos, J. E. |
| contents | In this letter, we present the intrinsic state formalism of the Interacting Boson-Fermion Model incorporating both 0p-0h and 2p-2h (regular and intruder) configurations. The framework allows to deal with the unpaired fermion in either a single-j or multi-j orbital and is applicable to both axial and triaxial nuclear shapes. The formalism is applied to a schematic transitional region where regular and intruder configurations coexist and cross. We show that the boson-fermion part of the Hamiltonian can either enhance or suppress the emergence of a type II Quantum Phase Transition. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_05650 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An intrinsic-state formalism for the Interacting Boson-Fermion Model with configuration mixing Maya-Barbecho, E. García-Ramos, J. E. Nuclear Theory Nuclear Experiment In this letter, we present the intrinsic state formalism of the Interacting Boson-Fermion Model incorporating both 0p-0h and 2p-2h (regular and intruder) configurations. The framework allows to deal with the unpaired fermion in either a single-j or multi-j orbital and is applicable to both axial and triaxial nuclear shapes. The formalism is applied to a schematic transitional region where regular and intruder configurations coexist and cross. We show that the boson-fermion part of the Hamiltonian can either enhance or suppress the emergence of a type II Quantum Phase Transition. |
| title | An intrinsic-state formalism for the Interacting Boson-Fermion Model with configuration mixing |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2507.05650 |