2000/04/30 by Keshav Dasgupta, Sunil Mukhi, Govindan Rajesh · 176 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Cosmology and Gravitation Theories #Field (mathematics) #Gauge theory #Mathematical physics #Mathematics #Metastability #Noncommutative and Quantum Gravity Theories #Noncommutative geometry #Noncommutative quantum field theory #Physics #Pure mathematics #Quantum electrodynamics #Quantum mechanics #Soliton #String (physics) #String field theory #String theory #Tachyon #Tachyon condensation #Tachyonic field #Theoretical physics #hep-th
paper · pdf · doi:10.1088/1126-6708/2000/06/022
published in Journal of High Energy Physics 2000(06), 022 (Springer Nature) · 15 pages, harvmac (b)
arxiv created 2000/04/30 · openalex publication_date 2000/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
When unstable Dp-branes in type II string theory are placed in a B-field, the resulting tachyonic world-volume theory becomes noncommutative. We argue that for large noncommutativity parameter, condensation of the tachyon as a noncommutative soliton leads to new decay modes of the Dp-brane into (p-2)-brane configurations, which we interpret as suitably smeared BPS D(p-1)-branes. Some of these configurations are metastable. We discuss various generalizations of this decay process.