2007/01/31 by Michael Kiermaier, Yuji Okawa, Leonardo Rastelli +1 · 132 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Computer science #Construct (python library) #Cosmology and Gravitation Theories #Deformation (meteorology) #Field (mathematics) #Geometry #Mathematical analysis #Mathematical physics #Mathematics #Operator (biology) #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Singularity #String (physics) #Theoretical physics #Wedge (geometry) #hep-th
paper · pdf · doi:10.1088/1126-6708/2008/01/028
published in Journal of High Energy Physics 2008(01), 028 (Springer Nature) · 34 pages, LaTeX2e, 1 figure; v2: minor corrections, version published in JHEP
openalex publication_date 2008/01/09 · arxiv created 2008/01/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We develop a calculable analytic approach to marginal deformations in open string field theory using wedge states with operator insertions. For marginal operators with regular operator products, we construct analytic solutions to all orders in the deformation parameter. In particular, we construct an exact time-dependent solution that describes D-brane decay and incorporates all alpha' corrections. For marginal operators with singular operator products, we construct solutions by regularizing the singularity and adding counterterms. We explicitly carry out the procedure to third order in the deformation parameter.