In this review we describe our current understanding of the properties of open string
tachyons on an unstable D-brane or brane–antibrane system in string theory. The various …

After introducingthe open string fieldtheory both for bosonic string and for su-perstring, we
use them to examine the conjecture that the unstable configurations ofthe D-branes will …

We discuss construction of classical time dependent solutions in open string (field) theory,
describing the motion of the tachyon on unstable D-branes. Despite the fact that the string …

Using string field theory, we argue that the tachyon potential on a D-brane in bosonic string
theory in arbitrary background has a universal form, independent of the boundary conformal …

We construct the world-volume action for non-BPS D-branes in type II string theories. This
action is invariant under all the unbroken supersymmetries in the bulk, but these symmetries …

We review the recent developments in our understanding of non-BPS states and branes in
string theory. The topics include 1) construction of unstable non-BPS D-branes in type IIA …

It has been conjectured that at a stationary point of the tachyon potential for the D-brane of
bosonic string theory, the negative energy density exactly cancels the D-brane tension. We …

T-duality and actions for non-BPS D-branes Page 1 Journal of High Energy Physics T-duality
and actions for non-BPS D-branes To cite this article: Eric A. Bergshoeff et al JHEP05(2000)009 …

The tachyon effective field theory describing the dynamics of a non-Bogomol'nyi-Prasad-
Sommerfield (BPS) D-brane in superstring theory has an infinitely thin but finite tension kink …

We show that the tachyonic kink solution on a pair of Dp-branes in the bosonic string theory
can be identified with the D-(p-1)-brane of the same theory. We also speculate on the …