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- W2057665433 abstract "We propose an extension of general relativity with two different metrics. To each metric we define a Levi-Cevit`a connection and a curvature tensor. We then consider two types of fields, each of which moves according to one of the metrics and its connection. To obtain the field equations for the second metric we impose an exchange symmetry on the action. As a consequence of this ansatz, additional source terms for Einstein's field equations are generated. We discuss the properties of these additional fields, and consider the examples of the Schwarzschild solution, and the Friedmann-Robertson-Walker metric." @default.
- W2057665433 created "2016-06-24" @default.
- W2057665433 creator A5063369521 @default.
- W2057665433 date "2008-08-07" @default.
- W2057665433 modified "2023-09-25" @default.
- W2057665433 title "Bimetric theory with exchange symmetry" @default.
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- W2057665433 doi "https://doi.org/10.1103/physrevd.78.044015" @default.
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