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Article type: Cover
2003 Volume 107 Issue 6 Pages
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Article type: Appendix
2003 Volume 107 Issue 6 Pages
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Article type: Appendix
2003 Volume 107 Issue 6 Pages
F1-F2
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Seiji Terashima
Article type: Article
2003 Volume 107 Issue 6 Pages
F3-F8
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We give an interpretation of the index theorem from the point of view of the K-matrix theory, i.e. an unstable system with infinitely many D-instanton - anti D-instanton pairs. This interpretation is a corollary of the equivalence of the geometric and algebraic descriptions of a D-brane world-volume manifold, which was shown by using the equivalence between path integral and operator formulation of the boundary quantum mechanics.
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Takashi Yokono
Article type: Article
2003 Volume 107 Issue 6 Pages
F9-F13
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We found a gravity solution of p+1 dimensional extended object with SO(p)×SO(9-p) symmetry which has zero pressure and zero dilaton charge. This object is called tachyon matter which is a residual tachyon dust after tachyon condensation of brane and anti-brane system. We also discuss the Hawking temperature and some properties of this object.
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Sergei V. Ketov
Article type: Article
2003 Volume 107 Issue 6 Pages
F14-F20
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The non-perturbative (D-instanton corrected) low-energy effective action of the universal hypermultiplet in the type-IIA string theory compactified on a Calabi-Yau threefold is calculated in 4-dim, N=2 supergravity. The action is given by the quaternionic non-linear sigma-model whose metric is governed by the Eisenstein series E_<3/2>. The U(1)×U(1) isometry and the SL(2,Z) modular invariance play the key role in our construction.
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Katsuyuki Sugiyama
Article type: Article
2003 Volume 107 Issue 6 Pages
F21-F28
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We consider superalgebra and BPS conditions in the supermembrane theory on the pp-wave background. The full superalgebra is calculated and we present examples of 1/2 and 1/4 BPS conditions. Also BPS conditions of classical solutions in the matrix model are confirmed by using this formula.
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HIROAKI NAKANO
Article type: Article
2003 Volume 107 Issue 6 Pages
F29-F36
Published: September 20, 2003
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We discuss a phenomenological application of strongly-coupled, superconformal field theories (SCFT's) with a nontrivial infrared (IR) fixed point. If the quarks and leptons couple to a SOFT sector in an appropriate way, IR convergence property of the conformal fixed point ensures IR suppression of flavor violations in sfermion masses. When the SOFT is perturbed by a supersymmetric mass term, however, the resultant decoupling of the SOFT would induce large threshold corrections. To calculate the threshold effects on soft supersymmetry-breaking terms, we derive a compact expression for them in terms of supersymmetric anomalous dimensions. According to our formula, the decoupling of SOFT does not spoil the suppression of flavor-changing sfermion masses.
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Koji HASHIMOTO
Article type: Article
2003 Volume 107 Issue 6 Pages
F37-F45
Published: September 20, 2003
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In this talk I present several interesting aspects of dynamical tachyon condensation. Firstly, I demonstrate how under the rolling tachyon background the physical open string degrees of freedom exhibit Carrollian behavior and cease to propagate. Second, I present effective actions of Spacelike branes (S-branes). It turns out that they are quite useful for describing formation of fundamental strings and lower-dimensional D-branes in dynamical tachyon condensation.
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Yoshihisa KITAZAWA
Article type: Article
2003 Volume 107 Issue 6 Pages
F46-F52
Published: September 20, 2003
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We investigate non-commutative gauge theories in homogeneous spaces G/H. We construct such theories by adding cubic terms to IIB matrix model which contain the structure constants of G. The isometry of a homogeneous space, G must be a subgroup of SO(10) in our construction. We investigate CP^2=SU(3)/U(2) case in detail which gives rise to 4 dimensional non-commutative gauge theory. We show that non-commutative gauge theory on R^4 can be realized in the large N limit by letting the action approach IIB matrix model in a definite way. We discuss possible relevances of these theories to the large N limit of IIB matrix model.
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FUMIHIKO SUGINO
Article type: Article
2003 Volume 107 Issue 6 Pages
F53-F60
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Hiroyuki Fuji, Yutaka Ookouchi
Article type: Article
2003 Volume 107 Issue 6 Pages
F61-F68
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Article type: Appendix
2003 Volume 107 Issue 6 Pages
F69-F70
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F71-
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Hajime Sotani, Tomohiro Harada
Article type: Article
2003 Volume 107 Issue 6 Pages
F72-
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Shin MINESHIGE, Takashi HOSOKAWA
Article type: Article
2003 Volume 107 Issue 6 Pages
F73-
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[in Japanese], [in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F74-
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[in Japanese], [in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F75-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F76-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F77-
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Jordan Camp
Article type: Article
2003 Volume 107 Issue 6 Pages
F78-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F79-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F80-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F81-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F82-
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Tomohiro Harada
Article type: Article
2003 Volume 107 Issue 6 Pages
F83-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F84-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F85-
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Takahiro Tanaka, Sanjay Jhingan
Article type: Article
2003 Volume 107 Issue 6 Pages
F86-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F87-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F88-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
F89-
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[in Japanese]
Article type: Article
2003 Volume 107 Issue 6 Pages
19-27
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Article type: Index
2003 Volume 107 Issue 6 Pages
28-29
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Article type: Index
2003 Volume 107 Issue 6 Pages
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Article type: Index
2003 Volume 107 Issue 6 Pages
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Article type: Appendix
2003 Volume 107 Issue 6 Pages
App2-
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Article type: Appendix
2003 Volume 107 Issue 6 Pages
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Article type: Cover
2003 Volume 107 Issue 6 Pages
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Article type: Cover
2003 Volume 107 Issue 6 Pages
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