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- Publications
- Influence
F-theory and orientifolds
- A. Sen
- Physics
- 22 May 1996
By analyzing F-theory on K3 near the orbifold limit of K3 we establish the equivalence between F-theory on K3 and an orientifold of type IIB on T2, which in turn is related by a T-duality… Expand
Universality of the tachyon potential
- A. Sen
- Physics
- 16 November 1999
Using string field theory, we argue that the tachyon potential on a D-brane in bosonic string theory in arbitrary background has a universal form, independent of the boundary conformal field theory… Expand
Tachyon Dynamics in Open String Theory
- A. Sen
- Physics
- 11 October 2004
In this review we describe our current understanding of the properties of open string tachyons on an unstable D-brane or brane–antibrane system in string theory. The various string theoretic methods… Expand
Black hole entropy function and the attractor mechanism in higher derivative gravity
- A. Sen
- Physics
- 21 June 2005
We study extremal black hole solutions in D dimensions with near horizon geometry AdS2 ? SD?2 in higher derivative gravity coupled to other scalar, vector and anti-symmetric tensor fields. We define… Expand
Classical solutions in string field theory around the tachyon vacuum
- L. Rastelli, A. Sen, B. Zwiebach
- Physics
- 19 February 2001
In a previous paper [hep-th/0012251] we proposed a simple class of actions for string field theory around the tachyon vacuum. In this paper we search for classical solutions describing D-branes of… Expand
Non-BPS States and Branes in String Theory
- A. Sen
- Physics
- 29 April 1999
We review the recent developments in our understanding of non-BPS states and branes in string theory. The topics include 1) construction of unstable non-BPS D-branes in type IIA and type IIB string… Expand
Orientifold limit of F -theory vacua
- A. Sen
- Physics
- 24 February 1997
We show how an F theory compactified on a Calabi-Yau (n+1)-fold in an appropriate weak coupling limit reduces formally to an orientifold of type IIB theory compactified on an auxiliary complex… Expand
Tachyon Matter
- A. Sen
- Physics
- 28 March 2002
It is shown that classical decay of unstable D-branes in bosonic and superstring theories produces pressureless gas with non-zero energy density. The energy density is stored in the open string… Expand
Stable non-BPS bound states of BPS D-branes
- A. Sen
- Physics
- 5 May 1998
S-duality symmetry of type IIB string theory predicts the existence of a stable non-BPS state on an orbifold five plane of the type IIB theory if the orbifold group is generated by the simultaneous… Expand
D0-branes on $T^n$ and matrix theory
- A. Sen
- Physics
- 30 September 1997
The Hamiltonian describing Matrix theory on T^n is identified with the Hamiltonian describing the dynamics of D0-branes on T^n in an appropriate weak coupling limit for all n up to 5. New subtleties… Expand
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