Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Moriya, Hajime"'
We theoretically investigate quasiparticle properties of a neutron immersed in an alpha condensate, which is one of the possible states of dilute symmetric nuclear matter. The resonant $p$-wave neutron-alpha scattering, which plays a crucial role in
Externí odkaz:
http://arxiv.org/abs/2408.15043
Autor:
Moriya, Hajime, Narnhofer, Heide
We investigate the continuous extension of discrete shift translations on one dimensional quantum lattice systems. We focus on a specific construction provided by a quasi-free C*-flow on the one-dimensional fermion lattice system. This quasi-free C*-
Externí odkaz:
http://arxiv.org/abs/2405.01001
Publikováno v:
AAPPS Bull. 34, 9 (2024)
Neutron star observations, as well as experiments on neutron-rich nuclei, used to motivate one to look at degenerate nuclear matter from its extreme, namely, pure neutron matter. As an important next step, impurities and clusters in dilute neutron ma
Externí odkaz:
http://arxiv.org/abs/2310.19422
Publikováno v:
Phys. Lett. B 851, 138567 (2024)
We show that strong spin-triplet neutron-proton interaction causes polaronic protons to occur in neutron matter at subnuclear densities and nonzero temperature. As the neutron density increases, proton spectra exhibit a smooth crossover from a bare i
Externí odkaz:
http://arxiv.org/abs/2304.00535
Publikováno v:
Phys. Rev. C 106, 045807 (2022)
We theoretically investigate the fate of a neutron-alpha $p$-wave resonance in dilute neutron matter, which may be encountered in neutron stars and supernova explosions. While $^5$He is known as a resonant state that decays to a neutron and an alpha
Externí odkaz:
http://arxiv.org/abs/2207.13907
Autor:
Moriya, Hajime
Publikováno v:
Reviews in Mathematical Physics Vol. 36, No. 02, 2330008 (2024) Review Paper
This review informs that the impossibility of genuine quantum time crystals has been known in the C*-algebraic quantum statistical mechanics since 1970s. The KMS condition implies that spontaneous breakdown of time-translation symmetry is impossible
Externí odkaz:
http://arxiv.org/abs/2201.06051
We consider an open Dicke model comprising a single infinite-component vector spin and a single-mode harmonic oscillator which are connected by Jaynes--Cummings-type interaction between them. This open quantum model is referred to as the OISD (Open I
Externí odkaz:
http://arxiv.org/abs/2003.02262
Autor:
Moriya, Hajime
We prove the Gibbs variational formula in terms of quantum relative entropy density that characterizes translation invariant thermal equilibrium states in quantum lattice systems. It is a natural quantum extension of the similar statement established
Externí odkaz:
http://arxiv.org/abs/2002.04253
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Moriya, Hajime
Publikováno v:
Phys. Rev. D 98, 015018 (2018)
Sannomiya-Katsura-Nakayama have recently studied supersymmetry breakdown for an extension of the Nicolai supersymmetric fermion lattice model. This model called the extended Nicolai model is parameterized by an adjustable constant $g\in \mathbb{R}$ i
Externí odkaz:
http://arxiv.org/abs/1804.10884