Notes on D-branes in 2D Type 0 String Theory
نویسنده
چکیده
In this paper we construct complete macroscopic operators in two dimensional type 0 string theory. They represent D-branes localized in the time direction. We give another equivalent description of them as deformed Fermi surfaces. We also discuss a continuous array of such D-branes and show that it can be described by a matrix model with a deformed potential. For appropriate values of parameters, we find that it has an additional new sector hidden inside its strongly coupled region. February 2004 1 e-mail: [email protected]
منابع مشابه
Notes on D - branes of Type IIB String on AdS 5 × S 5
We promote a study of D-branes of type IIB string on the AdS5 × S 5 background. The possible D-branes preserving half of supersymmetries were classified up to and including the fourth order of fermionic variable θ in our previous work [hep-th/0310228]. In this paper we show that our classification is still valid even at the full order of θ . This proof supplements our previous results and compl...
متن کاملIntroduction to D-branes
Dirichlet-branes, or D-branes for short, have moved to center stage in string theory. In a relatively short time they have gone from being esoteric, and largely ignored, extended objects that existed in certain string theories to playing a key role in the present understanding of non-perturbative dynamics and duality in string theory. One reason that the importance of Dbranes was overlooked is ...
متن کاملÉtudes on D–Branes
This is a short arrangement of notes on D–branes, offered as an embellishment of five lectures which were presented at the 1998 Trieste Spring School entitled “Non–Perturbative Aspects of String Theory and Supersymmetric Gauge Theory”. There is a good number of collections of pedagogical notes on D–branes in the literature, and since space here is limited, no attempt will be made to cover all o...
متن کاملAnomalous Couplings of Type 0 D-branes
Closed type 0 string theories and their D-branes are introduced. The full Wess-Zumino action of these D-branes is derived. The analogy with type II is emphasized throughout the argument. Type 0 Strings and D-branes. Type 0 string theory is a nonsupersymmetric, modular invariant theory of closed strings. The presence of a tachyonic state in their spectrum makes type 0 strings much harder to anal...
متن کاملStable D8-branes and Tachyon Condensation in Type 0 Open String Theory
We consider non-BPS D8 (and D7) branes in type 0 open string theory and describe under which circumstances these branes are stable. We find stable non-BPS D7 and D8 in type 0 with and without D9-branes in the background. By extending the descent relations between D-branes to type 0 theories, the non-BPS D8-brane is considered as the result of a tachyon condensation of a D9 anti-D9 pair in type ...
متن کامل