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4 papers · 2 filters
Noncommutative Point Sources
A. Stern
We construct a perturbative solution to classical noncommutative gauge theory on minus the origin using the Groenewald-Moyal star product. The result describes a…
Boundaries and the Casimir effect in non-commutative space-time
Roberto Casadio, Alessandro Gruppuso, Benjamin Harms +1
We calculate modifications to the scalar Casimir force between two parallel plates due to space-time non-commutativity. We devise a heuristic approach to overcome the difficulties…
Gauge Theory of the Star Product
A. Pinzul, A. Stern
The choice of a star product realization for noncommutative field theory can be regarded as a gauge choice in the space of all equivalent star products. With the goal of having a g…
Zero point energy on extra dimension: Noncommutative Torus
S. Fabi, B. Harms, G. Karatheodoris
In this paper we calculate the zero point energy density experienced by observers on M^4 due to a massless scalar field defined throughout M^4 x T^2_F, where T^2_F are fuzzy extra…