2003/10/23 by Wung-Hong Huang
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-th #math-ph #math.MP
paper · pdf · doi:10.1016/j.physletb.2003.10.087
published as Phys.Lett. B578 (2004) 418-424 · Latex, 11 pages, typos corrected
arxiv created 2003/10/23 · openalex publication_date 2003/11/21 · arxiv updated 2015/06/26 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The interaction between the intersecting noncommutative D-branes (or membranes) is investigated within the M(atrix) theory. We first evaluate the spectrum of the off-diagonal fluctuation and see that there is a tachyon mode, which signals the instability of the intersecting branes. We next explain in detail how the tachyon modes (which are the off-diagonal fluctuations) can be combined with the original branes (which are the diagonal elements) to become a new diagonal matrix, which then represents the new recombined configurations after the tachyon condensation. The tachyon condensation configurations of the noncommutative branes we find are different from those of the commutative cases studied in the previous literatures.