Signals for Noncommutative QED at High Energy $e^+e^-$ Colliders
  We examine the signatures for noncommutative QED at $e^+e^-$ colliders with center of mass energies in excess of 1 TeV such as CLIC. For integrated luminosities of 1 ab$^{-1}$ or more, sensitivities to the associated mass scales greater than $\sqrt s$ are possible. 
J.L. Hewett, F.J. Petriello and T.G. Rizzo