Experimental realization of Lorentz boosts of space-time wave packets

The authors present an experimental procedure that is analogous to Lorentz boosts of space-time wave packets (STWPs), in that the physical transformation is identical to the mathematical impact of a Lorentz transformation except for an overall Doppler shift to the carrier. Their work indicates that a Lorentz boost of a STWP results in another STWP.