Abstract
In this chapter we continue the discussion of the effects of interaction between classical particles and fields and black holes.1 Let us begin by analyzing the efficiency of energy extraction from black holes. Recall that although a black hole is by definition a region of forbidden escape for any body and light rays, situations are possible in which energy can be extracted via certain physical processes. We will see later that this energy is extracted from the field connected with the black hole and surrounding it. Thus, extraction is possible if the black body rotates or is charged. Among such processes we already know the Penrose process (see Section 6.2) and the electrodynamic processes discussed in the preceding chapter. In this section, we establish some general restrictions on the possible efficiency of this kind of process.
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© 1989 Springer Science+Business Media Dordrecht
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Novikov, I.D., Frolov, V.P. (1989). Physical Effects in the Gravitational Field of a Black Hole. In: Physics of Black Holes. Fundamental Theories of Physics, vol 27. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2651-1_8
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DOI: https://doi.org/10.1007/978-94-017-2651-1_8
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-8448-4
Online ISBN: 978-94-017-2651-1
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