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Strings and QCD?
Joseph Polchinski
Is large- QCD equivalent to a string theory? Maybe, maybe not. I review various attempts to answer the question.
Effective Field Theory and the Fermi Surface
Joseph Polchinski
This is an introduction to the method of effective field theory. As an application, I derive the effective field theory of low energy excitations in a conductor, the Landau theory…
The Quantized Sigma Model Has No Continuum Limit in Four Dimensions. II. Lattice Simulation
Jorge de Lyra, Bryce DeWitt, See Kit Foong +5
A lattice formulation of the sigma model is developed, based on the continuum theory presented in the preceding paper. Special attention is given to choosin…
The Quantized Sigma Model Has No Continuum Limit in Four Dimensions. I. Theoretical Framework
Jorge de Lyra, Bryce DeWitt, See Kit Foong +5
The nonlinear sigma model for which the field takes its values in the coset space is similar to quantum gravity in being perturbatively nonrenormalizable an…
High Temperature Partition Function of the Rigid String
Joseph Polchinski, Zhu Yang
We find that the high temperature limit of the free energy per unit length for the rigid string agrees dimensionally with that of the QCD string (unlike the Nambu-Goto string). The…