Tachyon kinks on unstable Dp-branes

Abstract

In the context of tachyon effective theory coupled to Born-Infeld electromagnetic fields, we obtain all possible singularity-free static flat configurations of codimension one on unstable Dp-branes. Computed tension and string charge density suggest that the obtained kinks are D(p − 1) or D(p − 1)F1-branes.

Deforming tachyon kinks and tachyon potentials

“…which is the result found in [3,5]. Now consider the electric field E is not constant and can be related to a deformation function according to (15).…”

“…It has been conceived in the literature [1,2] that the D-branes in string theory can be viewed as realizations of tachyon kinks [3,4,5,6,7,8,9,10]. Higher dimensional branes can be related to lower dimensional ones via descent relations [11].…”

“…In this paper we investigate deformed tachyon potentials and deformed tachyon kinks, following the lines of developments on tachyon kinks put forward in [3,5]. Our main goal here is to address the aforementioned issue just by deforming "string theory motivated" tachyon potentials to get other consistent tachyon potentials by using properly the functional form of the gauge field components.…”

Non-BPS D-brane Near NS5-branes

“…In this case the radial mode and the tachyon decouple and can be studied separately. In particular, the spatial dependent tachyon condensation leads to the emergence of an array of codimension one D(p-1)-branes and D(p-1)-antibranes [18,23,24,25]. On the other hand the dynamics of the radial mode describes the collective motion of this system and its time dependence is the same as in the case of BPS D-brane [1].…”

Negative-tension branes and tensionless12brane in boundary conformal field theory

“…It is interpreted as a thick BPS D(p − 1)-brane in the background of fundamental string charge density. This has been checked in various languages including DBI EFT [9,25], BCFT [26], noncommutative field theory (NCFT) [27], and BSFT [13].…”