The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

The examination of parity symmetry in gravitational interactions has drawn increasing
attention. Although Einstein's General Relativity is parity-conserved, numerous theories of …

A Bayesian statistical analysis using redshift space distortions data is performed to test a
model of Symmetric Teleparallel Gravity where gravity is non-metrical. The cosmological …

We report the results of testing gravitational-wave birefringence using the largest population
of gravitational-wave events currently available. Gravitational-wave birefringence, which can …

KAGRA is a newly build gravitational wave observatory, a laser interferometer with 3 km arm
length, located in Kamioka, Gifu, Japan. In this paper, one of a series of articles featuring …

We discuss how tensor polarizations of gravitational waves can suffer Landau dam** in
the presence of velocity birefringence, when parity symmetry is explicitly broken. In …

Gravitational parity violation arises in a variety of theories beyond general relativity.
Gravitational waves in such theories have their propagation altered, leading to birefringence …

High-order spatial derivatives are of crucial importance for constructing the low energy
effective action of a Lorentz or parity violating theory of quantum gravity. One example is the …

We investigate the scalar induced gravitational waves (SIGWs) in metric teleparallel gravity
with the Nieh-Yan (NY) term, which results in parity violation during the radiation-dominated …

General relativity, though the most successful theory of gravity, has been continuously
modified to resolve its incompatibility with quantum mechanics and explain the origin of dark …