Unrenormalizable Theories Can Be Predictive. Typeset Using Revt E X 1

A Proposal of a Renormalization Group Transformation for Lattice Field Theories Typeset Using Revt E X

We propose a new Real Space Renormalization Group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we deene the block-spin transformation with two tunable free parameters, adapted to the system's action. Varying them it is possible to place the xed point very close to the simulation point. We show how the method works in a...

Typeset Using Revt E X 1

The HQET/NRQCD Lagrangian is computed to order α/m3. The computation is performed using dimensional regularization to regulate the ultraviolet and infrared divergences. The results are consistent with reparametrization invariance to order 1/m3. Some subtleties in the matching conditions for NRQCD are discussed. Typeset using REVTEX 1

Spacetime Embedding Diagrams for Black Holes * Typeset Using Revt E X

We show that the 1+1 dimensional reduction (i.e., the radial plane) of the Kruskal black hole can be embedded in 2+1 Minkowski spacetime and discuss how features of this spacetime can be seen from the embedding diagram. The purpose of this work is educational: The associated embedding diagrams may be useful for explaining aspects of black holes to students who are familiar with special relativi...

The Solution of Pde's Using Wavelets Typeset Using Revt E X

Adjoint \quark" Color Elds in Four-dimensional Lattice Gauge Theory: Vacuum Screening and Penetration Typeset Using Revt E X

The elds generated by \quarks" in the adjoint representation of SU(2) color are analyzed in the scaling region of the four-dimensional lattice theory. Evidence of vacuum screening of adjoint quarks is obtained from a comparison of quark-antiquark (QQ) ux-tubes for quarks in the adjoint (\isospin" j = 1) and fundamental (j = 1=2) representations. The component E j of the colorelectric eld streng...