Results 331 to 340 of about 1,841,622 (348)

Thermodynamics of string field theory motivated nonlocal models

, 2012
A bstractWe investigate the thermodynamic properties of the nonlocal tachyon motivated by their nonlocal structure in string field theory. We use previously developed perturbative methods for nonlocal fields to calculate the partition function and the ...
Tirthabir Biswas, J. Kapusta, Abraham Reddy   +2 more
semanticscholar   +1 more source

Gauge-invariant observables and marginal deformations in open string field theory

, 2012
A bstractThe level-truncation analysis of open string field theory for a class of periodic marginal deformations indicates that a branch of solutions in Siegel gauge exists only for a finite range of values of the marginal field.
Matěj Kudrna, Toru Masuda, Y. Okawa, M. Schnabl, K. Yoshida   +4 more
semanticscholar   +1 more source

Homotopy Classification of Bosonic String Field Theory

, 2012
We prove the decomposition theorem for the loop homotopy Lie algebra of quantum closed string field theory and use it to show that closed string field theory is unique up to gauge transformations on a given string background and given S-matrix.
Korbinian Münster, I. Sachs
semanticscholar   +1 more source

Multibrane solutions in open string field theory

, 2011
A bstractWe study properties of a class of solutions of open string field theory which depend on a single holomorphic function F (z). We show that the energy of these solutions is well defined and is given by integer multiples of a single D-brane tension.
Masaki Murata, M. Schnabl
semanticscholar   +1 more source

Winding number in string field theory

, 2011
A bstractMotivated by the similarity between cubic string field theory (CSFT) and the Chern-Simons theory in three dimensions, we study the possibility of interpreting $ \mathcal{N} = \left( {{\pi^2}/3} \right)\int {{{\left( {U{\mathcal{Q}_B}{U^{{ - 1}}}}
H. Hata, Toshiko Kojita
semanticscholar   +1 more source

The boundary state for a class of analytic solutions in open string field theory

, 2011
A bstractWe construct a boundary state for a class of analytic solutions in the Witten’s open string field theory. The result is consistent with the property of the zero limit of a propagator’s length, which was claimed in [19].
D. Takahashi
semanticscholar   +1 more source

Solutions from boundary condition changing operators in open string field theory

, 2010
We construct analytic solutions of open string field theory using boundary condition changing (bcc) operators. We focus on bcc operators with vanishing conformal weight such as those for regular marginal deformations of the background. For any Fock space
Michael Kiermaier, Y. Okawa, Pablo Soler
semanticscholar   +1 more source

Regularization of identity based solution in string field theory

, 2010
We demonstrate that an Erler-Schnabl type solution in cubic string field theory can be naturally interpreted as a gauge invariant regularization of an identity based solution.
S. Zeze
semanticscholar   +1 more source

Relevant deformations in open string field theory: a simple solution for lumps

, 2010
A bstractWe propose a remarkably simple solution of cubic open string field theory which describes inhomogeneous tachyon condensation. The solution is in one-to-one correspondence with the IR fixed point of the RG-flow generated in the two-dimensional ...
L. Bonora, C. Maccaferri, D. D. Tolla
semanticscholar   +1 more source

Conformal techniques in string theory and string field theory

Physics Reports, 1988
Abstract The application of some conformal and Riemann surface techniques to string theory and string field theory is described. First a brief review of Riemann surface techniques and of the Polyakov approach to string theory is presented. This is followed by a discussion of some features of string field theory and of its Feynman rules. Specifically,
Steven B. Giddings, Steven B. Giddings
openaire   +2 more sources