Relativity of superluminal observers in 1+3 spacetime

Andrzej Dragan, Kacper Dębski, Szymon Charzyński, Krzysztof Turzyński, Artur Ekert
2022 Classical and quantum gravity  
We develop an extension of special relativity in 1+3 dimensional spacetime to account for superluminal inertial observers and show that such an extension rules out the conventional dynamics of mechanical point-like particles and forces one to use field-theoretic framework. Therefore we show that field theory can be viewed as a direct consequence of extended special relativity.
doi:10.1088/1361-6382/acad60 fatcat:bmmslq2q2ve4viny73ikhuapue