Quadratic α′ corrections to T-duality

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

T-duality without Quantum Corrections

It is a well known fact that the classical (“Buscher”) transformations of T-duality do receive, in general, quantum corrections. It is interesting to check whether classical T-duality can be exact as a quantum symmetry. The natural starting point is a σ-model with N=4 world sheet supersymmetry. Remarkably, we find that (owing to the fact that, contrary to a widespread belief, N=4 models with to...

متن کامل

T - branes and α ′ - corrections

We study α’-corrections in multiple D7-brane configurations with noncommuting profiles for their transverse position fields. We focus on T-brane systems, crucial in F-theory GUT model building. There α′-corrections modify the D-term piece of the BPS equations which, already at leading order, require a non-primitive Abelian worldvolume flux background. We find that α′-corrections may either i) l...

متن کامل

Symmetric low-rank corrections to quadratic models

In this paper, we study the quadratic model updating problems by using symmetric low-rank correcting, which incorporates the measured model data into the analytical quadratic model to produce an adjusted model that matches the experimental model data, and minimizes the distance between the analytical and updated models. We give a necessary and sufficient condition on the existence of solutions ...

متن کامل

On the duality of quadratic minimization problems using pseudo inverses

‎In this paper we consider the minimization of a positive semidefinite quadratic form‎, ‎having a singular corresponding matrix $H$‎. ‎We state the dual formulation of the original problem and treat both problems only using the vectors $x in mathcal{N}(H)^perp$ instead of the classical approach of convex optimization techniques such as the null space method‎. ‎Given this approach and based on t...

متن کامل

Reducing S duality to T duality.

The infrared limit of D = 4, N = 4 Yang-Mills theory with compact gauge group G compactified on a two-torus is governed by an effective superconformal field theory. We conjecture that this is a certain orbifold involving the maximal torus of G. Yang-Mills S-duality makes predictions for all correlators of this effective conformal field theory. These predictions are shown to be implied by the st...

متن کامل

ذخیره 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: 2005

ISSN: 1029-8479

DOI: 10.1088/1126-6708/2005/07/047