This article is cited in 2 papers

Vacuum polarization of a complex automorphic scalar field in two-dimensional spacetime with closed null geodesics and the time-machine problem

S. V. Sushkov

Kazan State Pedagogical Institute

Abstract: The quantum authomorphic scalar field in two-dimensional space-time with closed null geodesics (the Cauchy horizon) is considered. The stress energy tensor $\langle T_{\mu\nu}\rangle^{\mathrm{ren}}$ is obtained. It is shown that the value of $\langle T_{\mu\nu}\rangle^{\mathrm{ren}}$ is regular at the Cauchy horizon for specific authomorphic parameter.

Received: 02.02.1994

 English version: Theoretical and Mathematical Physics, 1995, 102:1, 98–108

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