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- Paolo Di Vecchia, Marialuisa Frau, A. Lerda, Raffaele Marotta, Igor Pesando
- 2000

We study the classical geometry associated to fractional D3-branes of type IIB string theory on IR/Z2 which provide the gravitational dual for N = 2 super Yang-Mills theory in four dimensions. As oneâ€¦ (More)

- Marco BillÃ³, Paolo Di Vecchia, +4 authors Stefano Sciuto
- 1998

Using the boundary state formalism, we perform a microscopic string analysis of the interaction between two D-branes and provide a local interpretation for the R-R force in the D0-D8 brane system. Toâ€¦ (More)

- Matteo Bertolini, Paolo Di Vecchia, Marialuisa Frau, A. Lerda, Raffaele Marotta, Rodolfo Veneziano Russo
- 2000

We study the classical geometry produced by a stack of stable (i.e. tachyon free) non-BPS D-branes present in K3 compactifications of type II string theory. This classical representation is derivedâ€¦ (More)

- Paolo Di Vecchia, A. Lerda, P. Merlatti
- 2002

We consider supergravity solutions of D5 branes wrapped on supersym-metric 2-cycles and use them to discuss relevant features of four-dimensional N = 1 and N = 2 super Yang-Mills theories with gaugeâ€¦ (More)

- Paolo Di Vecchia, Marialuisa Frau, A. Lerda, Antonella Liccardo
- 1999

We use the boundary state formalism to provide the full conformal description of (F,Dp) bound states. These are BPS configurations that arise from a superposition of a fundamental string and a Dpâ€¦ (More)

We discuss fractional D3-branes on the orbifold C3/Z2 Ã— Z2. We study the open and the closed string spectrum on this orbifold. The corresponding N = 1 theory on the brane has, generically, a U(N1) Ã—â€¦ (More)

In this article we review the conditions for the validity of the gauge/gravity correspondence in both supersymmetric and non-supersymmetric string models. We start by reminding what happens in typeâ€¦ (More)

- Matteo Bertolini, Paolo Di Vecchia, Marialuisa Frau, A. Lerda, Raffaele Marotta
- 2001

We study a bound state of fractional D3/D7-branes in the ten-dimensional space IR Ã— IR/Z2 using the boundary state formalism. We construct the boundary actions for this system and we show that higherâ€¦ (More)

- Paolo Di Vecchia, Jens Lyng Petersen, Michela Petrini, Rodolfo Veneziano Russo, Alessandro Tanzini
- 2003

We pursue the study of string interactions in the PP-wave background and show that the proposal of hep-th/0211188 can be extended to a full supersymmetric vertex. Then we compute some stringâ€¦ (More)

- Marco BillÃ³, Paolo Di Vecchia, Daniel Cangemi
- 1997

We determine the boundary state for both the NS-NS and R-R sectors of superstring theory. We show how they are modified under a boost. The boosted boundary state is then used for computing theâ€¦ (More)