10,824 research outputs found
Equilibrium Thermodynamics of Lattice QCD
Lattice QCD allows us to simulate QCD at non-zero temperature and/or
densities. Such equilibrium thermodynamics calculations are relevant to the
physics of relativistic heavy-ion collisions. I give a brief review of the
field with emphasis on our work.Comment: 15 pages, 9 figures. Talk presented at SCGT06, Nagoya, Japan. Version
2 includes minor modifications to reference work not covered in version
Study of radiation effects on mammalian cells in vitro
Radiation effect on single cells and cell populations of Chinese hamster lung tissue is studied in vitro. The rate and position as the cell progresses through the generation cycle shows division delay, changes in some biochemical processes in the cell, chromosomal changes, colony size changes, and loss of reproductive capacity
Quantization and simulation of Born-Infeld non-linear electrodynamics on a lattice
Born-Infeld non-linear electrodynamics arises naturally as a field theory
description of the dynamics of strings and branes. Most analyses of this theory
have been limited to studying it as a classical field theory. We quantize this
theory on a Euclidean 4-dimensional space-time lattice and determine its
properties using Monte-Carlo simulations. The electromagnetic field around a
static point charge is measured using Luscher-Weisz methods to overcome the
sign problem associated with the introduction of this charge. The D field
appears identical to that of Maxwell QED. However, the E field is enhanced by
quantum fluctuations, while still showing the short distance screening observed
in the classical theory. In addition, whereas for the classical theory, the
screening increases without bound as the non-linearity increases, the quantum
theory approaches a limiting conformal field theory.Comment: 24 pages, 10 figures. Latex with postscript figure
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