Non-minimal Coupling for the Gravitational and Electromagnetic Fields: a General System of Equations
نویسندگان
چکیده
We establish a new self-consistent system of equations for the gravitational and electromagnetic fields. The procedure is based on a non-minimal non-linear extension of the standard Einstein-Hilbert−Maxwell action. General properties of a threeparameter family of non-minimal linear models are discussed. In addition, we show explicitly, that a static spherically symmetric charged object can be described by a non-minimal model, second order in the derivatives of the metric, when the susceptibility tensor is proportional to the double-dual Riemann tensor. PACS numbers: 04.20.-q, 04.40.-b, 04.40.Nr e-mail: [email protected] e-mail: [email protected]
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