Propagation of gravitational waves in the nonperturbative spinor vacuum

TL;DR

This paper investigates how gravitational waves behave in a nonperturbative spinor vacuum, revealing unique features like phase differences, subluminal velocities, damping, and multiple wave solutions, which could help explore quantum field theories.

Contribution

It presents a novel analysis of gravitational wave propagation in a nonperturbative spinor vacuum, highlighting effects not seen in empty space and suggesting experimental tests.

Findings

Existence of fixed phase difference between wave components

Gravitational wave velocities are less than the speed of light

Potential damping or absence of waves under certain conditions

Abstract

The propagation of gravitational waves on the background of a nonperturbative vacuum of a spinor field is considered. It is shown that there are several distinctive features in comparison with the propagation of plane gravitational waves through empty space: there exists the fixed phase difference between the $h_{yy,zz}$ and $h_{yz}$ components of the wave; the phase and group velocities of gravitational waves are not equal to the velocity of light; the group velocity is always less than the velocity of light; under some conditions the gravitational waves are either damped or absent; for given frequency, there exist two waves with different wave vectors. We also discuss the possibility of experimental verification of the obtained effects as a tool to investigate nonperurbative quantum field theories.