KEK Theory Center

ISO, Satoshi

ISO, Satoshi

Research subjects

I am investigating the structure of vacuum and the space-time by using nonperturbative or nonequilibrium methods in field theories, gravity and superstring theories.

Especially I have been studying the following issues recently.

The first is the problem of mass scales in the standard model of particle physics,i.e. the hierarchy problem and the cosmological constant problem. These problems are difficult to solve within the standard framework of field theoris and we need a new approach to attack them. I am reinvestingating the hierarchy problem based on the Wilsonian renormalization group and hidden conformal symmetries.

Another issue I am interested in is the thermodynamics of gravity and space-time. Observers who are accelerated or who are in black hole backgrounds can access only a limited region of the space-time, and thermodynamic laws hold for these observes. I am investigating microscopic structres that may be hidden behind the space-time with horizons by using quantum and nonequilibrium methods of field theories near horizons, superstring theories and matrix models.

Selected papers

Stochastic Equations in Black Hole Backgrounds and Non-equilibrium Fluctuation Theorems
Satoshi Iso, Susumu Okazawa
Nucl.Phys. B851 (2011) 380-419.

Stochastic Analysis of an Accelerated Charged Particle
Satoshi Iso, Yasuhiro Yamamoto, Sen Zhang.
Phys.Rev. D84 (2011) 025005.

Non-Equilibrium Fluctuations of Black Hole Horizons
Satoshi Iso, Susumu Okazawa, Sen Zhang.
Physics Letters B (2011)

The minimal B-L model naturally realized at TeV scale
Satoshi Iso, Nobuchika Okada, Yuta Orikasa.
Phys.Rev. D80 (2009) 115007.

Higher-spin Currents and Thermal Flux from Hawking Radiation
Satoshi Iso, Takeshi Morita, Hiroshi Umetsu.
Phys.Rev. D75 (2007) 124004.

Anomalies, Hawking radiations and regularity in rotating black holes
Satoshi Iso, Hiroshi Umetsu, Frank Wilczek.
Phys.Rev. D74 (2006) 044017.

Hawking radiation from charged black holes via gauge and gravitational anomalies
Satoshi Iso, Hiroshi Umetsu, Frank Wilczek.
Phys.Rev.Lett. 96 (2006) 151302.

Ginsparg-Wilson relation, topological invariants and finite noncommutative geometry
Hajime Aoki, Satoshi Iso, Keiichi Nagao.
Phys.Rev. D67 (2003) 085005.

Noncommutative gauge theory on fuzzy sphere from matrix model
Satoshi Iso, Yusuke Kimura, Kanji Tanaka, Kazunori Wakatsuki.
Nucl.Phys. B604 (2001) 121-147.

Wilson loops in noncommutative Yang-Mills
Nobuyuki Ishibashi, Satoshi Iso, Hikaru Kawai, Yoshihisa Kitazawa.
Nucl.Phys. B573 (2000) 573-593.

Noncommutative Yang-Mills in IIB matrix model
H.Aoki, N.Ishibashi, S.Iso, H.Kawai, Y.Kitazawa, T.Tada.
Nucl.Phys. B565 (2000) 176-192.

Space-time structures from IIB matrix model
H.Aoki,S.Iso, H.Kawai, Y.Kitazawa, T.Tada.
Prog.Theor.Phys. 99 (1998) 713-746.

Anyon basis of c = 1 conformal field theory
Satoshi Iso.
Nucl.Phys. B443 (1995) 581-595.

Fermions in the lowest Landau level:
Bosonization, W infinity algebra, droplets, chiral bosons
Satoshi Iso, Dimitra Karabali, B. Sakita.
Phys.Lett. B296 (1992) 143-150.

One-dimensional fermions as two-dimensional droplets via Chern-Simons theory
Satoshi Iso, Dimitria Karabali, B. Sakita.
Nucl.Phys. B388 (1992) 700-714.

Canonical formulation of quantum tunneling with dissipation
Kazuo Fujikawa, Satoshi Iso, Misao Sasaki, Hiroshi Suzuki.
Phys.Rev.Lett. 68 (1992) 1093-1096.