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PIRSA:08110041

Video URL

https://pirsa.org/08110041

Gravitoelectromagnetism

Bertschinger, E. (2008). Gravitoelectromagnetism. Perimeter Institute for Theoretical Physics. https://pirsa.org/08110041

Edmund Bertschinger Massachusetts Institute of Technology (MIT) - Department of Physics

Talk numberPIRSA:08110041
DOI10.48660/08110041
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Gravitomagnetism is a subtle concept. Adding Lorentz invariance to Newtonian gravity leads to magnetism, but Einsteinian gravitomagnetism differs from Maxwell\'s electromagnetism. The differences lead to confusion when Lense-Thirring precession is wrongly ascribed to gyroscopes, and when authors disagree about whether lunar laser ranging has measured gravitomagnetism. To clarify these issues, we analyze electric and magnetic effects in local Lorentz frames using the tetrad formalism.