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WKB approximation in complex time II

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Abstract

The non-perturbative method, developed recently, of WKB approximation in complex time is applied to some known curved space time. Three cases namely (1) static in and out region, (2) non-static in and out region, (3) static in and non static out region are considered here. We find non-trivial particle production corresponding to the quantum vacuum definition of Castagnino and Mazzitelli.

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Authors and Affiliations

  1. Department of Physics, University of Kalyani, 741 235, Kalyani, India

    S Biswas, J Guha & N G Sarkar

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  1. S Biswas
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  2. J Guha
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  3. N G Sarkar
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Biswas, S., Guha, J. & Sarkar, N.G. WKB approximation in complex time II. Pramana - J. Phys. 42, 319–332 (1994). https://doi.org/10.1007/BF02847758

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  • DOI: https://doi.org/10.1007/BF02847758

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