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Riemann-Hilbert Problem and Quantum Field Theory: Integrable Renormalization, Dyson-Schwinger Equations
Riemann-Hilbert Problem Quantum Field Theory
2010/11/19
In the first purpose, we concentrate on the theory of quantum integrable systems underlying the Connes-Kreimer approach. We introduce a new family of Hamiltonian systems depended on the perturbative ...
DeWitt-Schwinger Renormalization of $<\phi^2>$ in $d$ Dimensions
DeWitt-Schwinger Renormalization $<\phi^2>$ $d$ Dimensions
2010/12/20
A compact expression for the DeWitt-Schwinger renormalization terms suitable for use in even-dimensional space-times is derived. This formula should be useful for calculations of h 2(x)i and hTμ (x)i...