Measurement-induced entanglement entropy of gravitational wave detections

Research on the projective measurement of gravitons increasingly supports Dyson's observations on the physical limitations of detecting single gravitons. It is therefore prudent to consider alternative signatures of non-classicality in gravitational wave detections to determine if gravity is qu...

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Main Authors: Preston Jones, Quentin G. Bailey, Andri Gretarsson, Edward Poon
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269325003892
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author Preston Jones
Quentin G. Bailey
Andri Gretarsson
Edward Poon
author_facet Preston Jones
Quentin G. Bailey
Andri Gretarsson
Edward Poon
author_sort Preston Jones
collection DOAJ
description Research on the projective measurement of gravitons increasingly supports Dyson's observations on the physical limitations of detecting single gravitons. It is therefore prudent to consider alternative signatures of non-classicality in gravitational wave detections to determine if gravity is quantized. Coincident multiple detector operations make it possible to consider the bipartite measurement-induced entanglement, in the detection process, as a signature of non-classicality. By developing a model of measurement-induced entanglement, based on a fixed number of gravitons for the bipartite system, we demonstrate that the entanglement entropy is on the order of a few percent of the mean number of gravitons interacting with the detectors. The bipartite measurement-induced entanglement is part of the detection process, which avoids the challenges associated with developing signatures of production-induced entanglement, due to the extremely low gravitational wave detector efficiencies. The calculation of normalized measurement-induced entanglement entropy demonstrates the potential of developing physically meaningful signatures of non-classicality based on bipartite detections of gravitational radiation. This result is in stark contrast to the discouraging calculations based on single-point detections.
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spelling doaj-art-04dcdc35c10047b4bbee20c1f7a969f52025-08-20T03:46:46ZengElsevierPhysics Letters B0370-26932025-09-0186813962810.1016/j.physletb.2025.139628Measurement-induced entanglement entropy of gravitational wave detectionsPreston Jones0Quentin G. Bailey1Andri Gretarsson2Edward Poon3Corresponding author.; Embry Riddle Aeronautical University, Prescott, AZ 86301, United States of AmericaEmbry Riddle Aeronautical University, Prescott, AZ 86301, United States of AmericaEmbry Riddle Aeronautical University, Prescott, AZ 86301, United States of AmericaEmbry Riddle Aeronautical University, Prescott, AZ 86301, United States of AmericaResearch on the projective measurement of gravitons increasingly supports Dyson's observations on the physical limitations of detecting single gravitons. It is therefore prudent to consider alternative signatures of non-classicality in gravitational wave detections to determine if gravity is quantized. Coincident multiple detector operations make it possible to consider the bipartite measurement-induced entanglement, in the detection process, as a signature of non-classicality. By developing a model of measurement-induced entanglement, based on a fixed number of gravitons for the bipartite system, we demonstrate that the entanglement entropy is on the order of a few percent of the mean number of gravitons interacting with the detectors. The bipartite measurement-induced entanglement is part of the detection process, which avoids the challenges associated with developing signatures of production-induced entanglement, due to the extremely low gravitational wave detector efficiencies. The calculation of normalized measurement-induced entanglement entropy demonstrates the potential of developing physically meaningful signatures of non-classicality based on bipartite detections of gravitational radiation. This result is in stark contrast to the discouraging calculations based on single-point detections.http://www.sciencedirect.com/science/article/pii/S0370269325003892
spellingShingle Preston Jones
Quentin G. Bailey
Andri Gretarsson
Edward Poon
Measurement-induced entanglement entropy of gravitational wave detections
Physics Letters B
title Measurement-induced entanglement entropy of gravitational wave detections
title_full Measurement-induced entanglement entropy of gravitational wave detections
title_fullStr Measurement-induced entanglement entropy of gravitational wave detections
title_full_unstemmed Measurement-induced entanglement entropy of gravitational wave detections
title_short Measurement-induced entanglement entropy of gravitational wave detections
title_sort measurement induced entanglement entropy of gravitational wave detections
url http://www.sciencedirect.com/science/article/pii/S0370269325003892
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