Superluminal behavior and the Minkowski space-time

Details Superluminal behavior and the Minkowski space-time Superluminal behavior and the Minkowski space-time

2006-03-08

arxiv.org/abs/gr-qc/0603024v1

Phys.Lett.A364:435-437,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 pages, 2 figures

Scientific paper

10.1016/j.physleta.2006.11.096

Bessel X-waves, or Bessel beams, have been extensively studied in last years, especially with regard to the topic of superluminality in the propagation of a signal. However, in spite of many efforts devoted to this subject, no definite answer has been found, mainly for lack of an exact definition of signal velocity. The purpose of the present work is to investigate the field of existence of Bessel beams in order to overcome the specific question related to the definition of signal velocity. Quite surprisingly, this field of existence can be represented in the Minkowski space-time by a Super-Light Cone which wraps itself around the well-known Light Cone. So, the change in the upper limit of the light velocity does not modify the fundamental low of the relativity and the causal principle.

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