Photon operators for lattice gauge theory

Efficient hadronic operators in lattice gauge theory.

We study operators to create hadronic states made of light quarks in quenched lattice gauge theory. We construct non-local gauge-invariant operators which provide information about the spatial extent of the ground state and excited states. The efficiency of the operators is shown by looking at the wave function of the first excited state, which has a node as a function of the spatial extent of ...

Lattice Gauge Theory

Supercomputers have recently become a crucial tool for the quantum field the-orist. Applied to the formalism of lattice gauge theory, numerical simulations are providing fundamental quantitative information about the interactions of quarks, the fundamental constituents of those particles which experience nuclear interactions. Perhaps most strikingly, these simulations have provided convincing e...

A lattice gauge theory model for graphene

National Computational Infrastructure for Lattice Gauge Theory

Participating Institutions and Principal Investigators: Physics: Boston University*, Richard Brower † ‡ and Claudio Rebbi † Brookhaven National Laboratory*, Michael Creutz † ‡ Columbia University*, Norman Christ † ‡ Fermi National Accelerator Laboratory*, Paul Mackenzie † ‡ Indiana University*, Steven Gottlieb ‡ Massachusetts Institute of Technology*, John Negele † ‡ Thomas Jefferson National A...

Improved Smoothing Algorithms for Lattice Gauge Theory

The relative smoothing rates of various gauge field smoothing algorithms are investigated on O(a2)-improved SU(3) Yang–Mills gauge field configurations. In particular, an O(a2)-improved version of APE smearing is motivated by considerations of smeared link projection and cooling. The extent to which the established benefits of improved cooling carry over to improved smearing is critically exami...