Flavor Structure in F-theory Compactifications (2009)
Hayashi, Hirotaka, Kawano, Teruhiko, Tsuchiya, Yoichi, Watari, Taizan
F-theory is one of frameworks in string theory where supersymmetric grand unification is accommodated, and all the Yukawa couplings and Majorana masses of right-handed neutrinos are generated. Yukawa...
Codimension-3 Singularities and Yukawa Couplings in F-theory (2009)
Hayashi, Hirotaka, Kawano, Teruhiko, Tatar, Radu, Watari, Taizan
F-theory is one of the frameworks where all the Yukawa couplings of grand unified theories are generated and their computation is possible. The Yukawa couplings of charged matter multiplets are...
Reheating in Chaotic D-Term Inflation (2008)
Kawano, Teruhiko, Yamaguchi, Masahide
A simple model is discussed to give rise to successful reheating in chaotic D-term inflation with a quadratic inflaton potential, introducing a trilinear coupling in the K\"ahler potential....
Schnabl's Solution and Boundary States in Open String Field Theory (2008)
Kawano, Teruhiko, Kishimoto, Isao, Takahashi, Tomohiko
We discuss that Schnabl's solution is an off-shell extension of the boundary state describing a D-brane in the closed string sector. It gives the physical meaning of the gauge invariant overlaps for...
Gauge Invariant Overlaps for Classical Solutions in Open String Field Theory (2008)
Kawano, Teruhiko, Kishimoto, Isao, Takahashi, Tomohiko
We calculate gauge invariant observables for Schnabl's solution with analytic method and with the level truncation approximation. We also compute them for the numerical solution initially obtained by...
New D-term chaotic inflation in supergravity and leptogenesis (2008)
Kadota, Kenji, Kawano, Teruhiko, Yamaguchi, Masahide
We present a new model of D-term dominated chaotic inflation in supergravity. The F-flat direction present in this model is lifted by the dominant D-term, which leads to chaotic inflation and...
Chaotic D-Term Inflation (2007)
A simple model for chaotic inflation in supergravity is proposed. The model is N=1 supersymmetric massive U(1) gauge theory via the Stuckelberg superfield and gives rise to D-term inflation with a...
Supersymmetric N=1 Spin(10) Gauge Theory with Two Spinors via a-Maximization (2007)
Kawano, Teruhiko, Yagi, Futoshi
We give a detailed analysis of the superconformal fixed points of four-dimensional N=1 supersymmetric Spin(10) gauge theory with two spinors and vectors by using a-maximization procedure.
Gauge Mediation in String Theory (2007)
Kawano, Teruhiko, Ooguri, Hirosi, Ookouchi, Yutaka
We show that a large class of phenomenologically viable models for gauge mediation of supersymmetry breaking based on meta-stable vacua can be realized in local Calabi-Yau compactifications of string...
Pouliot Type Duality via a-Maximization (2005)
Kawano, Teruhiko, Ookouchi, Yutaka, Tachikawa, Yuji, Yagi, Futoshi
We study four-dimensional N=1 Spin(10) gauge theory with a single spinor and vectors at the superconformal fixed point via the electric-magnetic duality and a-maximization. When gauge invariant...
Towards p-Adic String in Constant B-Field (2004)
Ghoshal, Debashis, Kawano, Teruhiko
Spacetime properties of the tachyon of the p-adic string theory can be derived from a (non-local) action on the p-adic line Q_p, thought of as the boundary of the `worldsheet'. We show that a term...
Parallelisable Heterotic Backgrounds (2003)
Figueroa-O'Farrill, José, Kawano, Teruhiko, Yamaguchi, Satoshi
We classify the simply-connected supersymmetric parallelisable backgrounds of heterotic supergravity. They are all given by parallelised Lie groups admitting a bi-invariant lorentzian metric. We find...
Dilatonic Parallelizable NS-NS Backgrounds (2003)
Kawano, Teruhiko, Yamaguchi, Satoshi
We complete the classification of parallelizable NS-NS backgrounds in type II supergravity by adding the dilatonic case to the result of Figueroa-O'Farrill on the non-dilatonic case. We also study...
Open String States around a Classical Solution in Vacuum String Field Theory (2001)
Hata, Hiroyuki, Kawano, Teruhiko
We construct a classical solution of vacuum string field theory (VSFT) and study whether it represents the perturbative open string vacuum. Our solution is given as a squeezed state in the Siegel...
Open String Fields As Matrices (2001)
Kawano, Teruhiko, Okuyama, Kazumi
We present a new representation of the string vertices of the cubic open string field theory. By using this three-string vertex, we attempt to identify open string fields as huge-sized matrices by...
S-Duality from OM-Theory (2000)
Kawano, Teruhiko, Terashima, Seiji
We study the compactification of OM-theory on tori and show a simple heuristic derivation of the $S$-duals of noncommutative open string theory in diverse dimensions from the OM-theoretical point of...
Open-Closed String Field Theory in the Background B-Field (2000)
Kawano, Teruhiko, Takahashi, Tomohiko
In this paper, we study open-closed string field theory in the background B-field in the so-called alpha=p^{+} formulation. The string field theory in the infrared gives noncommutative gauge theory...
Open String Field Theory on Noncommutative Space (1999)
Kawano, Teruhiko, Takahashi, Tomohiko
We study Witten's open string field theory in the presence of a constant B field. We construct the string field theory in the operator formalism and find that, compared to the ordinary theory with no...
Spinor Exchange in AdS_{d+1} (1999)
Kawano, Teruhiko, Okuyama, Kazumi
We explicitly calculate a Witten diagram with general spinor field exchange on $(d+1)$-dimensional Euclidean Anti-de Sitter space, which is necessary to evaluate four-point correlation functions with...
String Network and 1/4 BPS States in N=4 SU(n) Supersymmetric Yang-Mills Theory (1998)
Kawano, Teruhiko, Okuyama, Kazumi
We construct the classical configurations of BPS states with 1/4 unbroken supersymmetries in four-dimensional N=4 SU(n+1) supersymmetric Yang-Mills theory, and discuss that these configurations...
Matrix Theory on Noncommutative Torus (1998)
Kawano, Teruhiko, Okuyama, Kazumi
We consider the compactification of Matrix theory on tori with background antisymmetric tensor field. Douglas and Hull have recently discussed how noncommutative geometry appears on the tori. In this...
Duality of N=1 Supersymmetric SO(10) Gauge Theory with Matter in the Spinorial Representation (1996)
We study $N=1$ supersymmetric $SO(10)$ gauge theory with a field in the spinorial representaition and $N_f$ ($\leq8$) fields in the defining representation. It is shown that this theory for $N_f=7,8$...
Weyl Anomalies of Strings in Temporal Gauge (1995)
We consider two-dimensional quantum gravity coupled to matter in the temporal gauge, using the Polyakov path integral. We show that the integration over the metric can be explicitly performed under...