D-branes and matrix theory in curved space
نویسندگان
چکیده
منابع مشابه
D-branes and Matrix Theory in Curved Space
In this lecture, we will discuss a class of quantum mechanical actions which we believe are one appropriate starting point for defining Matrix theory in curved backgrounds. This is in part based on the works [16] and [25], and on work in progress with A. Kato and H. Ooguri. But first, let us give some historical background. A central lesson from the physics of D-branes [12,38,39] was a new and ...
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We obtain actions for N D-branes occupying points in a manifold with arbitrary Kähler metric. In one complex dimension, the action is uniquely determined (up to second order in commutators) by the requirement that it reproduce the masses of stretched strings and by imposing supersymmetry. These conditions are very restrictive in higher dimensions as well. The results provide a noncommutative ex...
متن کاملD-Branes in Curved Space
We review recent work on the structure of the action forN D0-branes in a curved background, with emphasis on the meaning of space-time diffeomorphism invariance. Talk given at the Francqui Colloquium, 2001, “Strings and Gravity: Tying the Forces Together.” E-mail: [email protected] Since their introduction in 1995 [1], D-branes have played a tremendously important role in string theory. It...
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We show that all supersymmetric Type IIA D-branes can be constructed as bound states of a certain number of unstable non-supersymmetric Type IIA D9-branes. This string-theoretical construction demonstrates that D-brane charges in Type IIA theory on spacetime manifold X are classified by the higher K-theory group K(X), as suggested recently by Witten. In particular, the system of N D0-branes can...
متن کاملMatrix Models and D-branes in Twistor String Theory
We construct two matrix models from twistor string theory: one by dimensional reduction onto a rational curve and another one by introducing noncommutative coordinates on the fibres of the supertwistor space P3|4 → CP . We comment on the interpretation of our matrix models in terms of topological D-branes and relate them to a recently proposed string field theory. By extending one of the models...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1998
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(98)00173-x