Probing nontensorial gravitational waves with a next-generation ground-based detector network

Understand

In General Relativity, there are only two polarizations for gravitational waves.

• However, up to six polarizations are possible in a generic metric theory of gravity.
• Therefore, measuring the polarization content of gravitational waves provides an efficient way to test theories of gravity.
• We analyze the sensitivity of a next-generation ground-based detector network to nontensorial polarizations.