Absolute synchronization: Faster-than-light particles and causality violation

1983 ◽  
Vol 75 (1) ◽  
pp. 11-18 ◽  
Author(s):  
G. Spinelli
Keyword(s):  
Causality Violation ◽  
Light Particles ◽  
Absolute Synchronization ◽  
Faster Than Light

Quest for Faster-Than-Light Particles

1968 ◽  
Vol 171 (5) ◽  
pp. 1357-1361 ◽  
Author(s):  
Torsten Alväger ◽  
Michael N. Kreisler
Keyword(s):  
Light Particles ◽  
Faster Than Light

Faster-than-light group velocities and causality violation

1970 ◽  
Vol 316 (1527) ◽  
pp. 515-524 ◽  
Keyword(s):  
Wave Equations ◽  
Signal Propagation ◽  
Necessary Condition ◽  
Speed Of Light ◽  
Frequency Range ◽  
Classical Analysis ◽  
Causality Violation ◽  
Light Group ◽  
Group Velocities ◽  
Faster Than Light

The classical analysis of Brillouin and Sommerfeld has shown that the appearance, in some frequency range, of group velocities in excess of the speed of light does not imply causality violation. The group velocity is not always identical with the velocity of signal propagation. We show that a necessary condition for causality violation is that the infinite- frequency limit of the phase velocity shall exceed the speed of light. Application of the theorem leads to the conclusions ( a ) that all Lorentz-invariant wave equations (and in particular the Feinberg ‘tachyon’) are causal, and ( b ) that the quasi-acoustic branch of the Bludman-Ruderman model is causal.

scholarly journals Search for Uncharged Faster-than-Light Particles

1970 ◽  
Vol 1 (3) ◽  
pp. 759-770 ◽  
Author(s):  
C. Baltay ◽  
G. Feinberg ◽  
N. Yeh ◽  
R. Linsker
Keyword(s):  
Light Particles ◽  
Faster Than Light

Possibility of Faster-Than-Light Particles

1967 ◽  
Vol 159 (5) ◽  
pp. 1089-1105 ◽  
Author(s):  
G. Feinberg
Keyword(s):  
Light Particles ◽  
Faster Than Light

Causality and faster than light particles

1970 ◽  
Vol 21 (2) ◽  
pp. 436-444 ◽  
Author(s):  
Paul L. Csonka
Keyword(s):  
Light Particles ◽  
Faster Than Light

Cooper's evidence for faster-than-light particles

1982 ◽  
Vol 12 (12) ◽  
pp. 1181-1182 ◽  
Author(s):  
Allan Franklin
Keyword(s):  
Light Particles ◽  
Faster Than Light
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