THE ENERGY–MOMENTUM TENSOR IN NONCOMMUTATIVE GAUGE FIELD MODELS

Noncommutative Tachyonic Solitons. Interaction with Gauge Field

We show that in the presence of U(1) non-commutative YM interaction the noncommutative tachyonic system exhibits solitonic solutions (even) for finite value of non commutativity parameter θ.

Reduced Models and Noncommutative Gauge Theories

This is a short review of the relation between the Reduced Models and Noncommutative Yang–Mills Theories (NCYM) based on the works [13, 14, 15].

Energymomentum Complex in General Relativity and Gauge Theory

Alternative versions of the energymomentum complex in general relativity are given compact new formulations with spacetime algebra. A new unitary form for Einstein’s equation greatly simplifies the derivation and analysis of gravitational superpotentials. Interpretation of Einstein’s equations as a gauge field theory on flat spacetime is shown to resolve ambiguities in energymomentum conservati...

Gauge Field Theory Models

Topology of the Gauge Group in Noncommutative Gauge Theory

I argue that the gauge group of noncommutative gauge theory consists of maps into unitary operators on Hilbert space of the form u = 1+K with K compact. Some implications of this proposal are outlined. Proceedings of Strings 2001