منابع مشابه
Arts and Science - Dyson
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متن کاملDyson - Schwinger Equation Studies
The dichotomy of the pion as QCD's Goldstone mode and a bound state of massive constituents is easily understood using the Dyson-Schwinger equations. That provides the foundation for an efficacious phenomenology, which correlates the pion's charge radius and electromagnetic form factor with its valence quark distribution function; and simultaneously provides a Poincaré covariant description of ...
متن کاملDerivation of Dyson-Schwinger equations
Dyson-Schwinger equations, the equations of motion of Green functions, provide a non-perturbative description of quantum eld theories. Especially for the strong interaction they have been used very successfully in recent years. In this note their derivation is described. As examples the twopoint Dyson-Schwinger equation for a scalar theory and the ghost-gluon vertex Dyson-Schwinger equations of...
متن کاملDyson - Schwinger Equations in Nonperturbativefield
The Dyson-Schwingerequation formalism is reviewed and its applicationto nonperturba-tive studies of gauge eld theories is dicussed. As a speciic illustration of the derivation and techniques we discuss strong coupling QED. A detailed discussion of renormalisation in this approach is presented. This is necessary to extend current numerical techniques for studying strong-coupling QED to the case ...
متن کاملOn a Conjecture of Dyson
Abstract. In this paper we study Dyson’s classical r-component hierarchical model with a Hamiltonian function which has a continuous O(r)-symmetry, r ≥ 2.This is a one-dimensional ferromagnetic model with a long range interaction potential U(i, j) = −l(d(i, j))d(i, j), where d(i, j) denotes the hierarchical distance. We are interested in the case when l(t) is a slowly increasing positive functi...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2009
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.6647