Possible Constraints on Neutron Electric Dipole Moment from Pulsar Radiation

TL;DR

This paper derives a new, more stringent limit on the neutron electric dipole moment based on pulsar radiation observations, surpassing current experimental bounds.

Contribution

It introduces astrophysical constraints from pulsar radiation to set tighter limits on the neutron electric dipole moment.

Findings

Neutron electric dipole moment constrained to <10^-29 ecm

Pulsar radiation provides more stringent limits than laboratory experiments

Astrophysical observations can inform fundamental particle properties

Abstract

Even if only a small fraction of neutron dipole moments are aligned in a neutron star, observed pulsar radiation loses provide a stringent limit on the neutron electric dipole moment of <10-29 ecm, more stringent than best current experimental limits.