A Note on D-Branes of Odd Codimensions from Noncommutative Tachyons

Abstract

On a noncommutative space of rank-1, we construct a codimension-one soliton explicitly and, in the context of noncommutative bosonic open string field theory, identify it with the D24-brane. We compute the tension of the proposed D24-brane, yielding an exact value and show that it is related to the tension of the codimension two D23-brane by the string T-duality. This resolves an apparent puzzle posed by the result of Harvey, Kraus, Larsen and Martinec and proves that the T-duality is a gauge symmetry; in particular, at strong noncommutativity, it is part of the U(oo) gauge symmetry on the worldvolume. We also apply the result to non-BPS D-branes in superstring theories and argue that the codimension-one soliton gives rise to new descent relation among the non-BPS D-branes in Type IIA and Type IIB string theories via T-duality.

12 pages, no figure, v2. final version to appear in Physics Letters B

References in corpus (7)

• Noncommutative Solitons
• Universality of the Tachyon Potential
• Noncommutative Tachyons
• D-branes and Strings as Non-commutative Solitons
• D-Branes as Unstable Lumps in Bosonic Open String Field Theory
• Noncommutative Tachyons And String Field Theory
• Gauge Theory on a Quantum Phase Space

Cited by in corpus (11)

• Tachyon Dynamics in Open String Theory
• A Review on Tachyon Condensation in Open String Field Theories
• Some Issues in Non-commutative Tachyon Condensation
• String Field Theory Around the Tachyon Vacuum
• Tachyon Condensation on Noncommutative Torus
• On Exact Noncommutative BPS Solitons
• Chern-Simons Terms on Noncommutative Branes
• Tachyon condensation in unstable type I D-brane systems
• Noncommutative Tachyon Kinks as D$(p-1)$-branes from Unstable D$p$-brane
• A Note on Non-Commutative Field Theory and Stability of Brane-Antibrane Systems
• Matrix Model and String Field Theory