Gravitational memory effect
Gravitational memory effects, also known as gravitational-wave memory effects are predicted persistent changes in the relative position of pairs of points in space due to the passing of a gravitational wave.[1] Detection of gravitational memory effects has been suggested as a way of validating Einstein's Theory of General Relativity.[2]
Linear vs. non-linear effects
There are two kinds of predicted gravitational memory effect: a linear phenomenon, and a non-linear phenomenon known as the nonlinear memory effect.[3][4]
Research on the predicted phenomena has been carried out by Ya. B. Zel'dovich and A. G. Polnarev,[1][5] V. B. Braginsky and L. P. Grishchuk,[1][6] and Demetrios Christodoulou.[7]
References
- ^ a b c Gibbons, G. W. (July 4, 2017). "The gravitational memory effect: what it is and why Stephen and I did not discover it" (PDF).
{{cite web}}: CS1 maint: url-status (link) - ^ "Astronomers search for gravitational-wave memory". phys.org. February 4, 2020. Retrieved 2020-07-31.
{{cite web}}: CS1 maint: url-status (link) - ^ Favata, Marc (2010-04-21). "The gravitational-wave memory effect". Classical and Quantum Gravity. 27 (8): 084036. doi:10.1088/0264-9381/27/8/084036. ISSN 0264-9381.
- ^ Favata, Marc. "Gravitational-wave memory: an overview" (PDF).
- ^ Ya. B. Zel’dovich and A. G. Polnarev, “Radiation of gravitational waves by a cluster of superdense stars,” Astron. Zh. 51, 30 (1974) [Sov. Astron. 18 17(1974)].
- ^ V B Braginsky and L P Grishchuk, Kinematic resonance and the memory effect in free mass gravitational antennas, Zh. Eksp. Teor. Fiz. 89 744-750 (1985) [Sov.Phys. JETP 62, 427 (1985)].
- ^ Christodoulou, Demetrios (1991-09-16). "Nonlinear nature of gravitation and gravitational-wave experiments". Physical Review Letters. 67 (12): 1486–1489. doi:10.1103/PhysRevLett.67.1486. ISSN 0031-9007.
External links
- Gravitational-wave memory: an overview by Marc Favata
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