Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Vittorio Somà"'
Autor:
Vittorio Somà
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Nuclear structure theory has recently gone through a major renewal with the development of ab initio techniques that can be applied to a large number of atomic nuclei, well-beyond the light sector that had been traditionally targeted in the past. Sel
Externí odkaz:
https://doaj.org/article/d7babc521c02486aa6afc67a025d21d7
Publikováno v:
Phys.Rev.C
Phys.Rev.C, 2022, 105 (4), pp.044330. ⟨10.1103/PhysRevC.105.044330⟩
Phys.Rev.C, 2022, 105 (4), pp.044330. ⟨10.1103/PhysRevC.105.044330⟩
Background. The Gorkov approach to self-consistent Green's function theory has been formulated in [V. Som\`a, T. Duguet, C. Barbieri, Phys. Rev. C 84, 064317 (2011)]. Over the past decade, it has become a method of reference for first-principle compu
Publikováno v:
Physical review letters. 128(8)
The interpretation of the emergent collective behavior of atomic nuclei in terms of deformed intrinsic shapes is at the heart of our understanding of the rich phenomenology of their structure, ranging from nuclear energy to astrophysical applications
Publikováno v:
Eur.Phys.J.A
Eur.Phys.J.A, 2021, 57 (4), pp.151. ⟨10.1140/epja/s10050-021-00458-z⟩
Eur.Phys.J.A, 2021, 57 (4), pp.151. ⟨10.1140/epja/s10050-021-00458-z⟩
The computational cost of ab initio nuclear structure calculations is rendered particularly acute by the presence of (at least) three-nucleon interactions. This feature becomes especially critical now that many-body methods aim at extending their rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e648f6b0b36c8c13cc48d18dc426759
https://hal.archives-ouvertes.fr/hal-03164422
https://hal.archives-ouvertes.fr/hal-03164422
Publikováno v:
Eur.Phys.J.A
Eur.Phys.J.A, 2021, 57 (10), pp.297. ⟨10.1140/epja/s10050-021-00606-5⟩
Eur.Phys.J.A, 2021, 57 (10), pp.297. ⟨10.1140/epja/s10050-021-00606-5⟩
Expansion many-body methods correspond to solving complex tensor networks. The (iterative) solving of the network and the (repeated) storage of the unknown tensors requires a computing power growing polynomially with the size of basis of the one-body
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecc15062be6240e29c58b2ecb4b4b068
https://hal.archives-ouvertes.fr/hal-03423977
https://hal.archives-ouvertes.fr/hal-03423977
Publikováno v:
The European Physical Journal A. 57
Publikováno v:
Annals Phys.
Annals Phys., 2021, 424, pp.168358. ⟨10.1016/j.aop.2020.168358⟩
Annals Phys., 2021, 424, pp.168358. ⟨10.1016/j.aop.2020.168358⟩
In order to solve the A-body Schr\"odinger equation both accurately and efficiently for open-shell nuclei, a novel many-body method coined as Bogoliubov many-body perturbation theory (BMBPT) was recently formalized and applied at low orders. Based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95f5cad22419990f3714aeaa526d0550
https://hal.archives-ouvertes.fr/hal-02497801
https://hal.archives-ouvertes.fr/hal-02497801
Autor:
Vittorio Somà
Publikováno v:
Eur.Phys.J.Plus
Eur.Phys.J.Plus, 2018, 133 (10), pp.434. ⟨10.1140/epjp/i2018-12244-2⟩
Eur.Phys.J.Plus, 2018, 133 (10), pp.434. ⟨10.1140/epjp/i2018-12244-2⟩
International audience; The present article aims to give a concise account of the main developments in nuclear structure theory, from its origin in the 1930s to date, taking the modelling of inter-nucleon interactions as guideline.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85ce1294db10b9010615caba5e56be6b
https://hal.science/hal-01937768
https://hal.science/hal-01937768
Publikováno v:
Phys.Lett.B
Phys.Lett.B, 2018, 786, pp.195-200. ⟨10.1016/j.physletb.2018.09.044⟩
Physics Letters B, Vol 786, Iss, Pp 195-200 (2018)
Physics Letters
Physics Letters B
Phys.Lett.B, 2018, 786, pp.195-200. ⟨10.1016/j.physletb.2018.09.044⟩
Physics Letters B, Vol 786, Iss, Pp 195-200 (2018)
Physics Letters
Physics Letters B
A novel Rayleigh-Schr\"odinger many-body perturbation theory (MBPT) approach is introduced by making use of a particle-number-breaking Bogoliubov reference state to tackle (near-)degenerate open-shell fermionic systems. By choosing a reference state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ab046ed355139abada9a0a9de51bc04
https://hal.science/hal-01839698
https://hal.science/hal-01839698
Publikováno v:
Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014).
Advances in the self-consistent Green's function approach to finite nuclei are discussed, including the implementation of three-nucleon forces and the extension to the Gorkov formalism. We report results on binding energies in the nitrogen and fluori