Descent Relation of Tachyon Condensation from Boundary String Field Theory
نویسندگان
چکیده
We analyze how lower-dimensional bosonic D-branes further decay, using the boundary string field theory. Especially we find that the effective tachyon potential of the lower-dimensional D-brane has the same profile as that of D25-brane. ∗[email protected] †[email protected]
منابع مشابه
Tachyon condensation and Boundary States in Bosonic String
We discuss tachyon configuration for the unoriented bosonic string theory which produces a bosonic string theory with SO(32) gauge symmetry in ten dimensions. It is closely related to the tachyon condensation scenario proposed by A. Sen. We also give the boundary state description of the tachyon condensation process, with some emphasis on the rôle of orbifold conformal field theory. Talk given ...
متن کاملClassical and Quantum D-branes in 2D String Theory
We investigate two classes of D-branes in 2-d string theory, corresponding to extended and localized branes, respectively. We compute the string emission during tachyon condensation and reinterpret the results within the c = 1 matrix model. As in hep-th/0304224, we find that the extended branes describe classical eigenvalue trajectories, while, as found in hep-th/0305159, the localized branes c...
متن کاملWorldsheet Description of Tachyon Condensation in Open String Theory
In this thesis we review the fundamental framework of boundary string field theory (BSFT) and apply it to the tachyon condensation on non-BPS systems in the superstring theory. The boundary string field theory can be regarded as a natural extension of the nonlinear sigma model. By using this theory we can describe the tachyon condensation exactly and also obtain the effective actions on non-BPS...
متن کاملDecay of type 0 NS 5 - branes to nothing
The perturbative vacuum of type 0 string theory is unstable due to the existence of the closed string tachyon. This instability can be removed by S1 compactification with twisted boundary condition for the tachyon field. We show that even in this situation unwrapped NS5branes are unstable and decay to bubbles of nothing smoothly without tunneling any potential barrier. We discuss a relation bet...
متن کاملTachyon Condensation and Background Independent Superstring Field Theory
We study quantum corrections at the one loop level in open superstring tachyon condensation using the boundary string field theory (BSFT) method. We find that the tachyon field action has the same form as at the disc level, but with a renormalized effective coupling λ = g s e −T /4 (g s is the renormalized dimensionless closed string coupling, e /4 is the tachyonic field expectation value) and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000