The Master Ward Identity andGeneralized
نویسنده
چکیده
منابع مشابه
Master Ward Identity for Nonlocal Symmetries in D=2 Principal Chiral Models
We derive, in path integral approach, the (anomalous) master Ward identity associated with an infinite set of nonlocal conservation laws in two-dimensional principal chiral models.
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In the framework of perturbative quantum field theory a new, universal renormalization condition (called Master Ward Identity) was recently proposed by one of us (M.D.) in a joint paper with F.-M. Boas. The main aim of the present paper is to get a better understanding of the Master Ward Identity by analyzing its meaning in classical field theory. It turns out that it is the most general identi...
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We derive, in path integral approach, the (anomalous) master Ward identity associated with an infinite set of nonlocal conservation laws in two-dimensional principal chiral models. To appear in the special issue of the Foundations of Physics in honor of Professor M. Namiki on the occasion of his 70th birthday.
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We study the appearance of anomalies of the Master Ward Identity, which is a universal renormalization condition in perturbative QFT. The main insight of the present paper is that any violation of the Master Ward Identity can be expressed as a local interacting field; this is a version of the well-known Quantum Action Principle of Lowenstein and Lam. Proceeding in a proper field formalism by in...
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A general method is presented for deriving on-shell Ward-identities in (2D) string theory. It is shown that all tree-level Ward identities can be summarized in a single quadratic differential equation for the generating function of all amplitudes. This result is extended to loop amplitudes and leads to a master equation à la Batalin-Vilkovisky for the complete partition function. supported by t...
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