Stability and causality are investigated for quantum field theories incorporating Lorentz and
CPT violation. Explicit calculations in the quadratic sector of a general renormalizable …

Broadband Powerline Communications: Network Design covers the applications of broadband
PLC systems in low-voltage supply networks, a promising candidate for the realization of …

Within the classical Maxwell-Chern-Simons limit of the standard-model extension, the emission
of light by uniformly moving charges is studied confirming the possibility of a Čerenkov-…

The emission of electromagnetic radiation by charges moving uniformly in a Lorentz-violating
vacuum is studied. The analysis is performed within the classical Maxwell-Chern-Simons …

Static electric dipole moments of nondegenerate systems probe mass scales for physics
beyond the Standard Model well beyond those reached directly at high energy colliders. …

Spacetime-varying coupling constants can be associated with violations of local Lorentz
invariance and CPT symmetry. An analytical supergravity cosmology with a time-varying fine-…

Perhaps the most intriguing open question in present-day fundamental physics concerns a
quantum theory of all fundamental interactions including gravitation. Experimental research …

In the context of threshold investigations of Lorentz violation, we discuss the fundamental
principle of coordinate independence, the role of an effective dynamical framework, and the …

Many candidate fundamental theories contain scalar fields that can acquire spacetime-varying
expectation values in a cosmological context. Such scalars typically obey Lorentz-…

We consider the possibility that Lorentz violation can generate differences between the
limiting velocities of light and charged matter. Such effects would lead to efficient vacuum …