@article{oai:oist.repo.nii.ac.jp:00002885, author = {Dragan, Andrzej and Dębski, Kacper and Charzyński, Szymon and Turzyński, Krzysztof and Ekert, Artur}, issue = {2}, journal = {Classical and Quantum Gravity}, month = {Dec}, note = {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 a field-theoretic framework. Therefore we show that field theory can be viewed as a direct consequence of extended special relativity.}, title = {Relativity of superluminal observers in 1 + 3 spacetime}, volume = {40}, year = {2022} }