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Limits on Neutron Lorentz Violation from Pulsar Timing

B. Altschul
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Abstract

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 1.7 x 10^(-8) at at least 90% confidence.

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B. Altschul. 2006-12-11. Limits on Neutron Lorentz Violation from Pulsar Timing. https://doi.org/10.1103/physrevd.75.023001

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