Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Makito Oi"'
Publikováno v:
Physics Letters B, Vol 779, Iss , Pp 237-243 (2018)
For the overlap matrix element between Hartree–Fock–Bogoliubov states, there are two analytically different formulae: one with the square root of the determinant (the Onishi formula) and the other with the Pfaffian (Robledo's Pfaffian formula). T
Externí odkaz:
https://doaj.org/article/7ad29a64f81440c898ae8fab9f0ace44
Autor:
Makito Oi
Publikováno v:
Bulgarian Journal of Physics. 49:097-107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9c4881af56da441e6c7582d18236641
https://doi.org/10.55318/bgjp.2022.49.1.097
https://doi.org/10.55318/bgjp.2022.49.1.097
Publikováno v:
EPJ Web of Conferences, Vol 223, p 01047 (2019)
A brief consideration about hidden symmetries in the HFB norm overlap functions is presented, in particular, in association with the presence of pair-wise degeneracy of the eigenvalue spectrum of a product of two antisymmetric matrices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a196b5328f28911e7e5b836273ab4e59
https://www.epj-conferences.org/articles/epjconf/pdf/2019/28/epjconf_nsd2019_01047.pdf
https://www.epj-conferences.org/articles/epjconf/pdf/2019/28/epjconf_nsd2019_01047.pdf
Publikováno v:
Physics Letters B, Vol 779, Iss, Pp 237-243 (2018)
Physics Letters B
Physics Letters B
For the overlap matrix element between Hartree-Fock-Bogoliubov states, there are two analytically different formulae: one with the square root of the determinant (the Onishi formula) and the other with the Pfaffian (Robledo's Pfaffian formula). The f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a5adf4d570e16ce5614b234ebd060ae
http://arxiv.org/abs/1711.00369
http://arxiv.org/abs/1711.00369
Publikováno v:
Physics Letters B. 725:175-179
We present a new formula to calculate matrix elements of a general unitary operator with respect to Hartree–Fock–Bogoliubov states allowing multiple quasi-particle excitations. The Balian–Brezin decomposition of the unitary operator [R. Balian,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::832a4170bf97c47e7dd53dff350d4edd
https://doi.org/10.1016/j.physletb.2013.07.005
https://doi.org/10.1016/j.physletb.2013.07.005
Publikováno v:
Physical Review C. 93
Background: The recently started physics campaign with the new generation of $\ensuremath{\gamma}$-ray spectrometers, ``GRETINA'' and ``AGATA,'' will possibly produce many high-quality $\ensuremath{\gamma}$ rays from very fast-rotating nuclei. Micros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::773e6bbc33950efb93ba63954464e039
https://doi.org/10.1103/physrevc.93.034322
https://doi.org/10.1103/physrevc.93.034322
Autor:
Takahiro Mizusaki, Makito Oi
Publikováno v:
Physics Letters B. 707:305-310
A formula to calculate a norm overlap between Hartree-Fock-Bogoliubov (HFB) states with the odd number parity (one quasi-particle excited states) is derived with help of the Grassmann numbers and the Fermion coherent states. The final form of the for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a466a079842d69caeea6a16c79a701c
https://doi.org/10.1016/j.physletb.2011.12.040
https://doi.org/10.1016/j.physletb.2011.12.040
Autor:
Yoshikazu Hirayama, Masumi Oshima, Mitsuo Koizumi, Toshiyuki Shizuma, Atsushi Kimura, M. Sugawara, Y. X. Watanabe, Tsuneyasu Morikawa, Hideo Harada, Yuichi Hatsukawa, Kazuyoshi Furutaka, Makito Oi, Shinsuke Ota, Fumito Kitatani, Shoji Nakamura, Yosuke Toh, Eiji Ideguchi
Publikováno v:
Progress of Theoretical Physics Supplement. 196:427-432
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28e5ae99603dd64a181f7929f8341bdb
https://doi.org/10.1143/ptps.196.427
https://doi.org/10.1143/ptps.196.427
Autor:
Masumi Oshima, Makito Oi, Tsuneyasu Morikawa, Yuichi Hatsukawa, Shoji Nakamura, Toshiyuki Shizuma, Atsushi Kimura, Yosuke Toh, Mitsuo Koizumi, Hideo Harada, M. Sugawara, Yoshikazu Hirayama, Hiroari Miyatake, Kazuyoshi Furutaka, Shinsuke Ota, Fumito Kitatani, Eiji Ideguchi, Yutaka Watanabe
Publikováno v:
Modern Physics Letters A. 25:1792-1795
A rotational band with five cascade γ-ray transitions was newly found in 40 Ar . The deduced transition quadrupole moment of [Formula: see text] has demonstrated this band as having a superdeformed shape of β2 ~ 0.5. The structure of the band was d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd38a8db87e37ed2df514c9a1bb7ef0f
https://doi.org/10.1142/s0217732310000344
https://doi.org/10.1142/s0217732310000344
Publikováno v:
EPJ Web of Conferences, Vol 178, p 02004 (2018)
The Hartree-Fock-Bogoliubov (HFB) method is one of the major methods to study a nuclear wave function. We discuss the sign problem in the Onishi formula, which emerges in calculating the overlap between two HFB wave functions. The origin of this prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be8a64ccc6e682e310060e61b3ce5b1e
https://doi.org/10.1051/epjconf/201817802004
https://doi.org/10.1051/epjconf/201817802004