A package for computing N = 2 superfield operator product expansions
نویسندگان
چکیده
منابع مشابه
Quantum Inequalities from Operator Product Expansions
Quantum inequalities are lower bounds for local averages of quantum observables that have positive classical counterparts, such as the energy density or the Wick square. We establish such inequalities in general (possibly interacting) quantum field theories on Minkowski space, using nonperturbative techniques. Our main tool is a rigorous version of the operator product expansion.
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The known operator solution of the massless Schwinger model is used to calculate exactly, in three operator product expansions, the coefficient functions of the first few operators of low dimension which contribute when vacuum matrix elements are to be taken. A comparison of the results provides a test of the procedure used by Shifman, Vainshtein, and Zakharov in their study of &CD. It is found...
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We develop a method of singularity analysis for conformal graphs which, in particular, is applicable to the holographic image of AdS supergravity theory. It can be used to determine the critical exponents for any such graph in a given channel. These exponents determine the towers of conformal blocks that are exchanged in this channel. We analyze the scalar AdS box graph and show that it has the...
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Local quark-hadron duality violations in conventional applications of the operator product expansion are proposed to have their origin in the fact that the QCD vacuum or a hadronic state is not only characterized by nonvanishing expectation values of local, gauge invariant operators but also by finite correlation lengths of the corresponding gauge invariant n-point functions. Utilizing high-res...
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Various formulas for currents with arbitrary spin are worked out in general space-time dimension, in the free field limit and, at the bare level, in presence of interactions. As the n-dimensional generalization of the (conformal) vector field, the (n/2 − 1)-form is used. The two-point functions and the higher-spin central charges are evaluated at one loop. As an application, the higher-spin hie...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 1996
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/13/11/006