Numerical evidence for monopoles in 3-dimensional Yang-Mills theory

Recently Anishetty, Majumdar and Sharatchandra have proposed a way of characterizing topologically non-trivial configurations for 2+1 dimensional Yang-Mills theory in a local and manifestly gauge invariant manner. In this paper paper we develop criteria to locate such objects in lattice gauge theory and find them in numerical simulations.Comment: 6 pages, 4 figures and 2 tables. Revtex. No changes in text. Problem with printing of figure fixed. To be published in PL-

Noise reduction algorithm for Glueball correlators

We present an error reduction method for obtaining glueball correlators from monte carlo simulations of SU(3) lattice gauge theory. We explore the scalar and tensor channels at three different lattice spacings. Using this method we can follow glueball correlators to temporal separations even up to 1 fermi. We estimate the improvement over the naive method and compare our results with existing computations.Comment: 6 pages, 4 tables and 2 figures, computations at larger volumes added, article partially rewritten, main conclusions unchange