Quantum simulation: Particle behavior near the event horizon of block hole

Scientists from Shanghai Jiao Tong University and Nanjing University propose and demonstrate a quantum evolution of fermions near an artificial black hole on a photonic chip. The acceleration, quantum creation and evolution of a fermion pair near the event horizon are observed: a single-photon wave packet with positive energy escapes from black hole while negative energy is captured. The extensible platform in the work also has the potentiality to investigate quantum gravity in future.