https://doi.org/10.1140/epjc/s10052-020-7812-2
Regular Article - Theoretical Physics
Exploring the CPT violation and birefringence of gravitational waves with ground- and space-based gravitational-wave interferometers
1
Theoretical Physics Division, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
2
School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
* e-mail: wangsai@ihep.ac.cn
Received:
19
November
2019
Accepted:
5
March
2020
Published online:
27
April
2020
In the gravitational sector, we study the CPT violation and birefringence in gravitational waves. In presence of the CPT violation, a relative dephasing is generated between two circular polarization states of gravitational waves. This effect induces the birefringence of gravitational waves. Given the gravitational waveform modified by the CPT violation, we estimate the expected constraints on the CPT violation from Advanced Laser Interferometer Gravitational-Wave Observatory, Einstein Telescope and Laser Interferometer Space Antenna.
© The Author(s), 2020
