In the past, I have studied supersymmetry, strings on orbifolds,
finite temperature field theory, and quantum gravity. My recent
interest is in quantum field theories with extra dimensions, which
may be regarded as low energy effective theories of string
theory. I am trying to reveal a framework of quantum field theory
with extra dimensions. Since Poincare invariance imposes no restrictions
on the extra dimensions, the framework of higher dimensional quantum
field theory is expected to be much larger than that of
4dimensional theory. Recent works on this subject suggest that
extra dimensions can give rich physical consequences at low
energies more than what one might expect naively. I believe that
there exist extra dimensions in Nature and the geometry can
explain some of the mysteries of the Standard Model. Through the
study of extra dimensions, I hope to find a clue to the final theory.
Main Publications

Tomohiro Abe, Yukihiro Fujimoto, Tatsuo Kobayashi, Takashi Miura, Kenji Nishiwaki, Makoto Sakamoto and Yoshiyuki Tatsuta,
"Classification of threegeneration models on magnetized orbifolds",
Nucl.Phys. B 894 (2015) 374406,
arXiv:1501.02787 [hepph]

Yukihiro Fujimoto, Kenji Nishiwaki, Makoto Sakamoto and Ryo Takahashi,
"Realization of lepton masses and mixing angles from point interactions in an extra dimension",
JHEP 1410 (2014) 191,
arXiv:1405.5872 [hepph]

Makoto Sakamoto and Kazunori Takenaga,
"Standard model with new order parameters at finite temperature",
Phys.Rev. D 89 (2014) 10, 105032,
arXiv:1312.7052 [hepth]

Makoto Sakamoto,
"Strong Coupling Quantum Einstein Gravity at a z=2 Lifshitz Point",
Phys.Rev. D 79 (2009) 124038,
arXiv:0905.4326 [hepth].

Mitsuhiro Kato, Makoto Sakamoto and Hiroto So,
"Taming the Leibniz Rule on the Lattice",
JHEP 0805 (2008) 057,
arXiv:0803.3121 [heplat].

C.S. Lim, Tomoaki Nagasawa, Makoto Sakamoto and Hidenori Sonoda,
"Supersymmetry in gauge theories with extra dimensions",
Phys.Rev. D 72 (2005) 064006,
hepth/0502022.

Hisaki Hatanaka, Makoto Sakamoto, Motoi Tachibana and Kazunori Takenaga,
"Many brane extension of the RandallSundrum solution",
Prog.Theor.Phys. 102 (1999) 12131218,
hepth/9909076.

Makoto Sakamoto, Motoi Tachibana and Kazunori Takenaga,
"Spontaneous supersymmetry breaking from extra dimensions",
Phys.Lett. B 458 (1999) 231236,
hepth/9902070.

Makoto Sakamoto,
"N=1/2 Supersymmetry in Two Dimensions",
Phys. Lett. B151 (1985) 115118.

Norisuke Sakai and Makoto Sakamoto,
"Lattice Supersymmetry and the Nicolai Mapping",
Nucl.Phys. B 229 (1983) 173.
last update 1 November 2015