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- Barton Zwiebach
- 1993

The complete quantum theory of covariant closed strings is constructed in detail. The action is defined by elementary vertices satisfying recursion relations that give rise to Jacobi-like identities… (More)

The generalized metric is a T-duality covariant symmetric matrix constructed from the metric and two-form gauge field and arises in generalized geometry. We view it here as a metric on the doubled… (More)

The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Abstract The zero modes of closed strings on a torus –the torus coordinates plus… (More)

- Barton Zwiebach
- 2004

An accessible introduction to string theory, this book provides a detailed and self-contained demonstration of the main concepts involved. The first part begins with a discussion of special… (More)

We develop an efficient recursive method to evaluate the tachyon potential using the relevant universal subalgebra of the open string star algebra. This method, using off-shell versions of Virasoro… (More)

Double field theory describes a massless subsector of closed string theory with both momentum and winding excitations. The gauge algebra is governed by the Courant bracket in certain subsectors of… (More)

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… (More)

We complete the construction of vacuum string field theory by proposing a canonical choice of ghost kinetic term a local insertion of the ghost field at the string midpoint with an infinite… (More)

Both in string field theory and in p-adic string theory the equations of motion involve infinite number of time derivatives. We argue that the initial value problem is qualitatively different from… (More)

Assuming that around the tachyon vacuum the kinetic term of cubic open string field theory is made purely of ghost operators we are led to gauge invariant actions which manifestly implement the… (More)