Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, IT-20133 Milano, Italy.
Phys Rev Lett. 2010 Nov 12;105(20):203901. doi: 10.1103/PhysRevLett.105.203901. Epub 2010 Nov 8.
Event horizons of astrophysical black holes and gravitational analogues have been predicted to excite the quantum vacuum and give rise to the emission of quanta, known as Hawking radiation. We experimentally create such a gravitational analogue using ultrashort laser pulse filaments and our measurements demonstrate a spontaneous emission of photons that confirms theoretical predictions.
天体物理黑洞和引力类比的事件视界预计会激发量子真空并产生量子辐射，即霍金辐射。我们使用超短激光脉冲细丝来实验性地创建这样的引力类比，并通过我们的测量证实了光子的自发发射，这与理论预测相符。
