Experimental observation of acceleration-induced thermality

We examine the radiation emitted by high energy positrons channeled into silicon crystal samples. The are modeled as semiclassical vector currents coupled to an Unruh-DeWitt detector incorporate any local change in of positron. In subsequent accelerated QED analysis, we discover a Larmor formula and power spectrum that both thermalized acceleration. Thus, these systems explicitly exhibit thermalization gap at celebrated Fulling-Davies-Unruh (FDU) temperature. Our derived spectrum, with nonzero gap, is then shown have excellent statistical agreement channeling experiments also provides method directly measure FDU investigate Rindler horizon dynamics confirm Bekenstein-Hawking area-entropy law satisfied experiments. As such, present evidence for first observation acceleration-induced thermality non-analogue system.