String Theory Effective Action: String Loop Corrections. Int. J. Mod. Phys., A3:365-395, 1988.Tseytlin A.A. 1988, String theory e ective action: string loop corrections, Int. J. Mod. Phys. A 3, 365-395.Tseytlin A.A. 1988, String theory effective action: string loop corrections,...
One-Loop Gauge Theory Amplitudes in N=4 Super Yang-Mills from MHV Vertices We propose a new, twistor string theory inspired formalism to calculate loop amplitudes in N=4 super Yang-Mills theory. In this approach, maximal helicity ... A Brandhuber,B Spence,G Travaglini - 《Nuclear Physics》...
theory by integrating out string degrees of freedom with a fixed worldsheet boundary. to reproduce path-ordering along the worldsheet boundary, we introduce lie algebra-valued fields on the string worldsheet, whose dynamics are determined by the topological bf action. without bulk contributions, we...
The theory of representations of loop groups provides a framework where one can consider Riemann surfaces with arbitrary numbers of handles and nodes on the same footing. Using infinite grassmanians we present a general formulation of some conformal field theories on arbitrary surfaces in terms of ...
From the 2-point function we are ableto derive the one loop β-function for noncommutative gauge theory. 2000 Elsevier Science B.V.All rights reserved.PACS: 11.25.w; 11.25.Db; 11.15.TkKeywords: String theory in backgrounds; Noncommutative geometry; Perturbative string theory;Renormalization1...
theory including gravitation. At present there are two classes of supersymmetric string theory, the superstring theory [ 1 ] (SST) of Green and Schwarz, that the heterotic string theory [2] (HST) of Gross, Harvey, Martinec and Rohm. Since only the HST can posses the gauge group E 8 X...
The theory of representations of loop groups provides a framework where one can consider Riemann surfaces with arbitrary numbers of handles and nodes on the same footing. Using infinite grassmanians we present a general formulation of some conformal field theories on arbitrary surfaces in terms of ...
String TheoryEstimatingNormalizingSingularity (MathematicsSupersymmetryThe quantitative studies of the one-loop mass shifts for the first excited states in ten-dimensional open superstring are given. Removing the apparent singularities in the on-shell integral expressions by an off-shell analytic continuation...
In this paper we re-derive the effective Nambu-Goto theory result for the Polyakov loop correlator, starting from the free bosonic string and using a covariant quantization. The boundary conditions are those of an open string attached to two D0-branes at spatial distance R, in a target space...
Yes, knot theory is a branch of mathematics studying the properties of knots. 2 What is a negative aspect of loops? Loops can cause issues if not properly managed, leading to infinite looping in software. What is the relationship between loops and feedback in engineering? Loops in engineering...