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| Paper IPM / P / 7921 |
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Recently the PVLAS collaboration has reported the observation of
rotation of polarization of light propagating in a background
magnetic field. In this letter we explore the possibility that such
a rotation is a result of noncommutativity in the background
space-time. To explain the reported polarization rotation within
noncommutative U(1) Yang-Mills theory we need the noncommutativity
parameter θ ≅ (30 GeV)−2
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