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8 papers · 1 filter
Periodic-orbit bifurcations as the origin of nuclear deformations
Ken-ichiro Arita
Semiclassical analysis of shell structures in realistic nuclear potentials are presented using periodic-orbit theory. We adopted r^alpha potential model and examined classical-quan…
Seifert surfaces in open books, and a new coding algorithm for links
Rei Furihata, Mikami Hirasawa, Tsuyoshi Kobayashi
We introduce a new standard form of a Seifert surface . In that standard form, is obtained by successively plumbing flat annuli to a disk , where the gluing regions are a…
Three Phases in the 3D Abelian Higgs Model with Nonlocal Gauge Interactions
Shunsuke Takashima, Ikuo Ichinose, Tetsuo Matsui +1
We study the phase structure of the 3D nonlocal compact U(1) lattice gauge theory coupled with a Higgs field by means of Monte-Carlo simulations. The nonlocal interactions among ga…
Deconfinement of Spinons on Critical Points: Multi-Flavor CP + U(1) Lattice Gauge Theory in Three Dimensions
Shunsuke Takashima, Ikuo Ichinose, Tetsuo Matsui
In this paper, we study the 3D -flavor CP model (a set of CP variables) coupled with a dynamical compact U(1) gauge field by means of Monte-Carlo sim…
Phase Structure of a 3D Nonlocal U(1) Gauge Theory: Deconfinement by Gapless Matter Fields
Gaku Arakawa, Ikuo Ichinose, Tetsuo Matsui +2
In this paper, we study a 3D compact U(1) lattice gauge theory with a variety of nonlocal interactions that simulates the effects of gapless/gapful matter fields. This theory is qu…
Self-consistent relativistic random phase approximation with vacuum polarization
A. Haga, H. Toki, S. Tamenaga +2
We present a theoretical formulation for the description of nuclear excitations within the framework of relativistic random-phase approximation whereby the vacuum polarization aris…