Zobrazeno 1 - 10
of 615
pro vyhledávání: '"Sakamoto, Makoto"'
Autor:
Sakamoto, Makoto, Takenaga, Kazunori
We develop a new formula called a mode recombination formula, and we can recast the effective potential at finite temperature in one-loop approximation for fermion and scalar fields on the $D$-dimensional spacetime, $S_{\tau}^1 \times R^{D-(p+1)}\tim
Externí odkaz:
http://arxiv.org/abs/2403.10775
We analyze the number of independent chiral zero modes and the winding numbers at the fixed points on $T^2/{\mathbb{Z}}_N$ ($N=2,3,4,6$) orbifolds with magnetic flux. In the case of $N=2$, we derive the index formula $n_{+}-n_{-}=M/2+(-V_{+}+V_{-})/4
Externí odkaz:
http://arxiv.org/abs/2211.15541
Autor:
Kobayashi, Tatsuo, Otsuka, Hajime, Sakamoto, Makoto, Takeuchi, Maki, Tatsuta, Yoshiyuki, Uchida, Hikaru
We investigate blow-up manifolds of $T^2/{\mathbb{Z}}_N\,(N=2,3,4,6)$ orbifolds with magnetic flux $M$. Since the blow-up manifolds have no singularities, we can apply the Atiyah-Singer index theorem to them. Then, we establish the zero-mode counting
Externí odkaz:
http://arxiv.org/abs/2211.04595
Autor:
Kobayashi, Tatsuo, Otsuka, Hajime, Sakamoto, Makoto, Takeuchi, Maki, Tatsuta, Yoshiyuki, Uchida, Hikaru
We study chiral zero-mode wave functions on blow-up manifolds of $T^2/Z_N$ orbifolds with both bulk and localized magnetic flux backgrounds. We introduce a singular gauge transformation in order to remove $Z_N$ phases for $Z_N$ twisted boundary condi
Externí odkaz:
http://arxiv.org/abs/2211.04596
Autor:
Sakamoto, Makoto, Takenaga, Kazunori
We study non-analytic terms, which cannot be written in the form of any positive integer power of field-dependent mass squared, in effective potential at finite temperature in one-loop approximation for a real scalar field on the $D$-dimensional spac
Externí odkaz:
http://arxiv.org/abs/2206.10195
Publikováno v:
Phys.Rev.D 106 (2022) 8, 085006
In this paper, we study five-dimensional Dirac fermions of which extra-dimension is compactified on quantum graphs. We find that there is a non-trivial correspondence between matrices specifying boundary conditions at the vertex of the quantum graphs
Externí odkaz:
http://arxiv.org/abs/2204.03834
Autor:
Tampo, Yusuke, Nogami, Daisaku, Kato, Taichi, Ayani, Kazuya, Naito, Hiroyuki, Narita, Norio, Fujii, Mitsugu, Hashimoto, Osamu, Honda, Kenzo Kinugasa Satoshi, Takahashi, Hidenori, Narusawa, Shin-ya, Sakamoto, Makoto, Imada, Akira
We present our spectroscopic observations of V455 Andromedae during the 2007 superoutburst. Our observations cover this superoutburst from around the optical peak of the outburst to the post-superoutburst stage. During the early superhump phase, the
Externí odkaz:
http://arxiv.org/abs/2201.09094
In this paper, we study non-Abelian Berry's connections in the parameter space of boundary conditions for Dirac zero modes on quantum graphs. We apply the ADHM construction, which is the method for constructing Yang-Mills instanton solutions, to the
Externí odkaz:
http://arxiv.org/abs/2104.02311
Publikováno v:
Phys. Rev. D 103, 025009 (2021)
We investigate chiral zero modes and winding numbers at fixed points on $T^2/\mathbb{Z}_N$ orbifolds. It is shown that the Atiyah-Singer index theorem for the chiral zero modes leads to a formula $n_+-n_-=(-V_++V_-)/2N$, where $n_{\pm}$ are the numbe
Externí odkaz:
http://arxiv.org/abs/2010.14214
Publikováno v:
Phys. Rev. D 102, 025008 (2020)
We thoroughly analyze the number of independent zero modes and their zero points on the toroidal orbifold $T^2/\mathbb{Z}_N$ ($N = 2, 3, 4, 6$) with magnetic flux background, inspired by the Atiyah-Singer index theorem. We first show a complete list
Externí odkaz:
http://arxiv.org/abs/2004.05570