Physicist recorded the Hawking radiation from analogue black holes.
Physicist Jeff Steinhauer from the Technion (Israel) have established a quantum analog of the black hole, I watched her evaporation (Hawking effect) and detected quantum entanglement between a pair of particles, one of which fell on the object, and the other withdrew from him.
The results of their research scientist published in the journal Nature Physics.
The experimental results are consistent with numerical modeling. In particular, the temperature of the radiation matches the spectrum predicted by Hawking.
The experiment was a laboratory analogue of a black hole — a region of supersonic motion in an ultracold condensate Bose-Einstein. This area of space, moving with constant speed, played a role analogous to the event horizon in a black hole. As a matter of condensation, Steinhauer used rubidium atoms, cooled to less than one billionth of a degree above absolute zero. At such temperatures, matter behaves collectively like one big particle.
With a laser scientist of the Israeli made a quantum fluid to flow faster than the speed of sound and watched the exponential growth of a standing wave resulting from interference between the analogues of particles with negative and positive energies in the result of Hawking radiation.
Hawking radiation involves the evaporation of black holes due to quantum fluctuations associated with the formation of pairs of virtual particles. One particle of the pair is emitted from the black hole and the other with negative energy falls into it.
Quantum entanglement is a phenomenon in which the quantum States of particles (e.g., spin or polarization), separated from each other, not be mutually independent. The procedure of measuring the state of one particle changes the state of the other.
