1998/02/11 by M. Hortacsu, M Hortaçsu, K. Ulker +1
Engineering · Physics and Astronomy · #Cosmology and Gravitation Theories #Material Science and Thermodynamics #Pulsars and Gravitational Waves Research #hep-th
paper · pdf · doi:10.1088/0264-9381/15/5/022
published as Class.Quant.Grav. 15 (1998) 1415-1420 · Submitted to Class. and Quant. Grav.,7 pages, no figures
arxiv created 1998/02/11 · openalex publication_date 1998/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We show that the vacuum expectation value of the stress-energy tensor of a scalar particle on the background of a spherical gravitational shock wave does not give a finite expression in second-order perturbation theory, in contrast to the case seen for the impulsive wave. No infrared divergences appear at this order. This result shows that there is a qualitative difference between the shock and impulsive wave solutions which is not exhibited in first order.