0 M ar 1 99 4 Is the gravitational action additive ?
نویسندگان
چکیده
The gravitational action is not always additive in the usual sense. We provide a general prescription for the change in action that results when different portions of the boundary of a spacetime are topologically identified. We discuss possible implications for the superposition law of quantum gravity. We present a definition of ‘generalized additivity’ which does hold for arbitrary spacetime composition. e-mail: [email protected] e-mail: [email protected] 0
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تاریخ انتشار 1994