منابع مشابه
Open and Closed Strings from Unstable D-branes
The tachyon effective field theory describing the dynamics of a non-BPS D-p-brane has electric flux tube solutions where the electric field is at its critical value and the tachyon is at its vacuum. It has been suggested that these solutions have the interpretation of fundamental strings. We show that in order that an electric flux tube can ‘end’ on a kink solution representing a BPS D-(p− 1)-b...
متن کاملD-branes in a plane wave from covariant open strings
We derive boundary conditions for the covariant open string corresponding to D-branes in an Hpp-wave, by requiring kappa symmetry of its bulk action. Both half-supersymmetric and quarter-supersymmetric branes are seen to arise in this way, and the analysis furthermore agrees fully with the existing probe brane and supergravity computations. We elaborate on the origin of dynamical and kinematica...
متن کاملOpen Strings on AdS2 Branes
We study the spectrum of open strings on AdS2 branes in AdS3 in an NS-NS background, using the SL(2, R) WZW model. When the brane carries no fundamental string charge, the open string spectrum is the holomorphic square root of the spectrum of closed strings in AdS3. It contains short and long strings, and is invariant under spectral flow. When the brane carries fundamental string charge, the op...
متن کاملDynamics of Dirichlet-Neumann Open Strings on D-branes
Method for computing scattering amplitudes of open strings with Dirichlet boundary on one end and Neumann boundary condition on the other is described. Vertex operator for these states are constructed using twist fields which have been studied previously in the context of Ashkin-Teller model and strings on orbifolds. Using these vertex operators, we compute the threeand four-point scattering am...
متن کاملScattering of Strings from D-branes
We review a number of perturbative calculations describing the interactions of D-branes with massless elementary string states. The form factors for the scattering of closed strings off D-branes are closely related to the Veneziano amplitude. They show that, in interactions with strings, D-branes acquire many of their physical features: the effective size of D-branes is of order the string scal...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2015
ISSN: 1029-8479
DOI: 10.1007/jhep06(2015)016