Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Tichai, A."'
Publikováno v:
Eur.Phys.J.A
Eur.Phys.J.A, 2022, 58 (1), pp.2. ⟨10.1140/epja/s10050-021-00621-6⟩
Eur.Phys.J.A, 2022, 58 (1), pp.2. ⟨10.1140/epja/s10050-021-00621-6⟩
The goal of the present paper is twofold. First, a novel expansion many-body method applicable to superfluid open-shell nuclei, the so-called Bogoliubov in-medium similarity renormalization group (BIMSRG) theory, is formulated. This generalization of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2641b9d7ce11c43e04abc9f8b83e1e75
https://hal.archives-ouvertes.fr/hal-03171412
https://hal.archives-ouvertes.fr/hal-03171412
Publikováno v:
Comput.Phys.Commun.
Comput.Phys.Commun., 2019, 240, pp.202-227. ⟨10.1016/j.cpc.2018.11.023⟩
Comput.Phys.Commun., 2019, 240, pp.202-227. ⟨10.1016/j.cpc.2018.11.023⟩
We describe the first version (v1.0.0) of the code ADG that automatically (1) generates all valid Bogoliubov many-body perturbation theory (BMBPT) diagrams and (2) evaluates their algebraic expression to be implemented for numerical applications. Thi
Publikováno v:
Phys.Lett.B
Phys.Lett.B, 2018, 786, pp.448-452. ⟨10.1016/j.physletb.2018.10.029⟩
Physics Letters B, Vol 786, Iss, Pp 448-452 (2018)
Physics Letters B
Physics Letters B, Elsevier, 2018, 786, pp.448-452. ⟨10.1016/j.physletb.2018.10.029⟩
Physics Letters
Phys.Lett.B, 2018, 786, pp.448-452. ⟨10.1016/j.physletb.2018.10.029⟩
Physics Letters B, Vol 786, Iss, Pp 448-452 (2018)
Physics Letters B
Physics Letters B, Elsevier, 2018, 786, pp.448-452. ⟨10.1016/j.physletb.2018.10.029⟩
Physics Letters
We introduce a hybrid many-body approach that combines the flexibility of the No-Core Shell Model (NCSM) with the efficiency of Multi-Configurational Perturbation Theory (MCPT) to compute ground- and excited-state energies in arbitrary open-shell nuc
Publikováno v:
Comput.Phys.Commun.
Comput.Phys.Commun., 2021, 261, pp.107677. ⟨10.1016/j.cpc.2020.107677⟩
Comput.Phys.Commun., 2021, 261, pp.107677. ⟨10.1016/j.cpc.2020.107677⟩
We describe the second version (v2.0.0) of the code ADG that automatically (1) generates all valid off-diagonal Bogoliubov many-body perturbation theory diagrams at play in particle-number projected Bogoliubov many-body perturbation theory (PNP-BMBPT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44e6648aab5792191c5f821ff184d6c6
https://hal.archives-ouvertes.fr/hal-02905927
https://hal.archives-ouvertes.fr/hal-02905927
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:
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
Publikováno v:
Eur.Phys.J.A
Eur.Phys.J.A, 2020, 56 (2), pp.40. ⟨10.1140/epja/s10050-020-00045-8⟩
European Physical Journal A
European Physical Journal A, EDP Sciences, 2020, 56 (2), pp.40. ⟨10.1140/epja/s10050-020-00045-8⟩
Eur.Phys.J.A, 2020, 56 (2), pp.40. ⟨10.1140/epja/s10050-020-00045-8⟩
European Physical Journal A
European Physical Journal A, EDP Sciences, 2020, 56 (2), pp.40. ⟨10.1140/epja/s10050-020-00045-8⟩
The reach of ab initio many-body theories is rapidly extending over the nuclear chart. However, dealing fully with three-nucleon, possibly four-nucleon, interactions makes the solving of the A-body Schr\"odinger equation particularly cumbersome, if n
Publikováno v:
European Physical Journal A
European Physical Journal A, EDP Sciences, 2020, 56 (10), pp.272. ⟨10.1140/epja/s10050-020-00233-6⟩
Eur.Phys.J.A
Eur.Phys.J.A, 2020, 56 (10), pp.272. ⟨10.1140/epja/s10050-020-00233-6⟩
European Physical Journal A, EDP Sciences, 2020, 56 (10), pp.272. ⟨10.1140/epja/s10050-020-00233-6⟩
Eur.Phys.J.A
Eur.Phys.J.A, 2020, 56 (10), pp.272. ⟨10.1140/epja/s10050-020-00233-6⟩
The ongoing progress in (nuclear) many-body theory is accompanied by an ever-rising increase in complexity of the underlying formalisms used to solve the stationary Schr\"odinger equation. The associated working equations at play in state-of-the-art
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b20c20d7b6679ce53191767c81067ce
Publikováno v:
Biblos-e Archivo. Repositorio Institucional de la UAM
instname
Physical Review C
Physical Review C, American Physical Society, 2020, 102 (5), pp.054320. ⟨10.1103/PhysRevC.102.054320⟩
Phys.Rev.C
Phys.Rev.C, 2020, 102 (5), pp.054320. ⟨10.1103/PhysRevC.102.054320⟩
instname
Physical Review C
Physical Review C, American Physical Society, 2020, 102 (5), pp.054320. ⟨10.1103/PhysRevC.102.054320⟩
Phys.Rev.C
Phys.Rev.C, 2020, 102 (5), pp.054320. ⟨10.1103/PhysRevC.102.054320⟩
The variational Hartree-Fock-Bogoliubov (HFB) mean-field theory is the starting point of various (ab initio) many-body methods dedicated to superfluid systems. While taking the zero-pairing limit of HFB equations constitutes a text-book problem when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24798708d0497f2a52b0128ca46271b7
Autor:
Mikael Frosini, Andreas Ekström, Pepijn Demol, Thomas Duguet, Achim Schwenk, Dean Lee, V. Somà, Alexander Tichai, Kai Hebeler, Sebastian König
Publikováno v:
Physical Review C
Physical review / C 101(4), 041302 (2020). doi:10.1103/PhysRevC.101.041302
Phys.Rev.C
Phys.Rev.C, 2020, 101 (4), pp.041302. ⟨10.1103/PhysRevC.101.041302⟩
Physical Review C, American Physical Society, 2020, 101 (4), pp.041302. ⟨10.1103/PhysRevC.101.041302⟩
Physical Review C (24699985) vol.101(2020)
Physical review / C 101(4), 041302 (2020). doi:10.1103/PhysRevC.101.041302
Phys.Rev.C
Phys.Rev.C, 2020, 101 (4), pp.041302. ⟨10.1103/PhysRevC.101.041302⟩
Physical Review C, American Physical Society, 2020, 101 (4), pp.041302. ⟨10.1103/PhysRevC.101.041302⟩
Physical Review C (24699985) vol.101(2020)
Quantum many-body theory has witnessed tremendous progress in various fields, ranging from atomic and solid-state physics to quantum chemistry and nuclear structure. Due to the inherent computational burden linked to the ab initio treatment of micros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca36e65a7e8c7064d973dc16e15ecb1e
http://arxiv.org/abs/1911.12578
http://arxiv.org/abs/1911.12578