Signatures of non-classicality in gravitational waves through bipartite detections

Using arguments based on fundamental principles, Freeman Dyson concluded that the individual measurement of the graviton is physically impossible. Considerable research has been dedicated to find the graviton through single-point detections, all of which supports Dyson's conclusion. The community of gravitational physicists still search for the graviton through means of single-point detections; however, there is a much greater possibility of successfully finding the graviton through bipartite detections. Our research follows up on the paper "Measurement-induced entanglement entropy of gravitational wave" by Preston Jones, Quentin G. Bailey, Andri Gretarsson, and Edward Poon in Physics Letters B and explores other possible methods of finding signatures of non-classicality in gravitational waves. The calculations performed to produce their Figure 2 are updated from Mathcad to Python to be more readily available for use in other measures of non-classicality. Bipartite detections allow for the observation of the measurement-induced entanglement entropy, which is a signature of non-classicality in gravitational waves. Bunching is another potential signature of non-classicality that can easily be observed in bosons with bipartite detections through Hanbury-Brown and Twiss experiments but is complicated by the optical equivalence theorem. However, bipartite detections also present the opportunity to observe anti-bunching, a purely quantum mechanical effect, which would prove that gravity is quantized. Bipartite detections are very likely the key to find the smoking gun for the quantization of gravity.