Some of the most sensitive methods of measuring magnetic fields use interactions of
resonant light with atomic vapour. Recent developments in this vibrant field have led to …

This work tabulates measured and derived values of coefficients for Lorentz and CPT
violation in the standard-model extension. Summary tables are extracted listing maximal …

The measurement sensitivity of quantum probes using N uncorrelated particles is restricted
by the standard quantum limit, which is proportional to 1/N. This limit, however, can be …

The role of the gravitational sector in the Lorentz-and CPT-violating standard-model
extension (SME) is studied. A framework is developed for addressing this topic in the context …

Motivated by ideas about quantum gravity, a tremendous amount of effort over the past
decade has gone into testing Lorentz invariance in various regimes. This review …

The role of Lorentz symmetry in noncommutative field theory is considered. Any realistic
noncommutative theory is found to be physically equivalent to a subset of a general Lorentz …

An investigation is performed of the Lorentz-violating electrodynamics extracted from the
renormalizable sector of the general Lorentz-and CPT-violating standard-model extension …

Microwave atomic clocks have been the de facto standards for precision time and frequency
metrology over the past 50 years, finding widespread use in basic scientific studies …

The behavior of photons in the presence of Lorentz and CPT violation is studied. Allowing
for operators of arbitrary mass dimension, we classify all gauge-invariant Lorentz-and CPT …

We describe a nuclear spin gyroscope based on an alkali-metal–noble-gas
comagnetometer. Optically pumped alkali-metal vapor is used to polarize the noble-gas …