Limits on neutron Lorentz violation from pulsar timing

@article{Altschul2006LimitsON,
  title={Limits on neutron Lorentz violation from pulsar timing},
  author={Brett Altschul},
  journal={Physical Review D},
  year={2006},
  volume={75},
  pages={023001}
}
  • B. Altschul
  • Published 8 August 2006
  • Physics
  • Physical Review D
Pulsars are the most accurate naturally occurring clocks, and data about them can be used to set bounds on neutron-sector Lorentz violations. If SO(3) rotation symmetry is completely broken for neutrons, then pulsars' rotation speeds will vary periodically. Pulsar timing data limits the relevant Lorentz-violating coefficients to be smaller than 1.7x10{sup -8} at at least 90% confidence. 

Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars

This work extends the analysis to Lorentz-violating matter-gravity couplings, utilizing three small-eccentricity relativistic neutron star -- white dwarf (WD) binaries to obtain compelling limits on various SME coefficients related to the neutron, the proton, and the electron.

Bounds on Lorentz and CPT violation from the Earth-ionosphere cavity

Electromagnetic resonant cavities form the basis of many tests of Lorentz invariance involving photons. The effects of some forms of Lorentz violation scale with cavity size. We investigate possible

Precession of spheroids under Lorentz violation and observational consequences for neutron stars

The Standard-Model Extension (SME) is an effective-field-theoretic framework that catalogs all Lorentz-violating field operators. The anisotropic correction from the minimal gravitational SME to

Cavity tests of parity-odd Lorentz violations in electrodynamics

Electromagnetic resonant cavities form the basis for a number modern tests of Lorentz invariance. The geometry of most of these experiments implies unsuppressed sensitivities to parity-even Lorentz

Perspectives on Lorentz and CPT Symmetry Violation

Lorentz and CPT symmetries are fundamental to our understanding of the standard model and general relativity, but there has recently been a great deal interest in the possibility that they may not be

Non-Minimal Lorentz Violation in Macroscopic Matter

The hamiltonian and modified Newton's second law for a test body are derived and the framework is applied to free-fall and torsion-balance tests of the weak equivalence principle and to orbital motion.

Testing Lorentz and CPT invariance with ultracold neutrons

In this paper we investigate, within the standard model extension framework, the influence of Lorentz- and CPT-violating terms on gravitational quantum states of ultracold neutrons. Using a

Atom interferometry tests of local Lorentz invariance in gravity and electrodynamics

We present atom-interferometer tests of the local Lorentz invariance of post-Newtonian gravity. An experiment probing for anomalous vertical gravity on Earth, which has already been performed, uses

What do we know about Lorentz invariance?

  • J. Tasson
  • Physics
    Reports on progress in physics. Physical Society
  • 2014
This work reviews the key concepts associated with Lorentz and CPT symmetry, the structure of the SME framework, and some recent experimental and theoretical results.

Electrodynamics with Lorentz-violating operators of arbitrary dimension

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-violating terms