Search
نمایش تعداد 1-10 از 4854
S duality of the D3-brane S matrix
There is a conjecture in the literature that indicates the tree-level S-matrix elements of graviton become symmetric under the SL(2,Z) transformation after including the loops and the nonperturbative effects. Using the Ward identity corresponding...
S-duality of S-matrix
Recently, it has been observed that the kinematic factor of the disk-level S-matrix element of two RR two-forms and the disk-level S-matrix element of two B-fields on the world volume of D$_3$-brane are compatible with the standard rules of S...
S-duality invariant dilaton couplings at order α′3
, proposed by Gross and Sloan, produces various NS-NS couplings which are invariant under T-duality. Recently, using the combination of S-duality and T-duality transformations on these couplings, we have found groups of couplings which are invariant under...
S-duality of tree-level S-matrix elements in D3-brane effective action
Recently it has been speculated that the S-matrix elements on the world volume of D3-branes should
satisfy the Ward identity corresponding to the S-duality transformations. For a single brane and in the low
energy limit, this indicates...
Tree-level S-matrix elements from S-duality
It has been speculated that the S-matrix elements of type IIB superstring theory satisfy the Ward identity associated with the S-duality. This indicates that a group of S-matrix elements at each loop level are invariant under the linear $SL(2,R...
Hydrodynamics of N=6 Superconformal Chern-Simons Theories at Strong Coupling
Using the duality conjecture between N=6 supersymmetric U(N)_ktimes U(N)_{-k} Chern-Simons theory and M-theory on AdS_4 times S^7/Z_{k}, we calculate the corrections to the shear viscosity of the field theory at temperature T. At strong t Hooft...
On-shell S-matrix and tachyonic effective actions
We evaluate various disk level four-point functions involving the massless scalar and tachyon vertex operators in the presence of background B-flux in superstring theory. By studying these amplitudes in specific limits, ...
S-duality of D-brane action at order O(α′2
). In this paper, we use the compatibility of the couplings on D_3-brane with the S-duality to find the nonlinear RR couplings at order O(α′2). We confirm the quadratic RR couplings in the DBI part with the disk-level scattering amplitude. Using the modular...
Designing Optimized Scheduling QoS-Aware RPL for Sensor- Based Smart Grid Communication Network
Various applications with different requirments are rapidly developed in the smart grid. The need to provide Quality of Service (QoS) for such a communication network is inevitable. However, recently a protocol called RPL (Routing Protocol for Low...