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Propagation of Thermal Disturbances in Minkowski Spacetime Generated by Continuous Laser Beams
M. Pelc, M. Kozlowski and J. Marciak-Kozlowska

In this paper we investigate heat transport induced by continuous laser beams up to an intensity of about 1029 Watt/cm2. We maintain that up to this intensity nonlinear effects are negligible and an application of the linear hyperbolic heat transport equation is fully justifiable. We show that the Fourier diffusion equation gives the speed of diffusion ,n>c and breaks the causality of the thermal processes in Minkowski space-time. For hyperbolic heat transport v<c and causality is valid.

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