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06

Engadget Logo The first observation of hooking radiation with the "Artificial Black Hall" made over 7 years of the Japanese version of Engajet.Is black hole a completely black evidence?

Israeli scientist Jeff Stein Hower has produced an artificial black hole, and has announced that it has observed a phenomenon similar to the theory "Hawking Ren" released by Dr. Steven Hawking in 1974. The artificial black hole created by Stein Hower does not inhale anything, including light, like a real black hole, but rather flows fluid into the test tube and accelerates it at a certain point more than the sound speed. It creates a horizontal surface of acoustic events. In a real black hole, the ground plane of the event occurs when the light cannot escape, but this artificial black hole is the surface of the event where the sound cannot be escaped. Black holes generally attract all substances and have a powerful gravity that can not be missed even if it is light, so it seems that there is a hole in the space in outer space. However, in consideration of the quantum effect, Dr. Hawking must have thermal radiation from it, and the ground plane of the event (the edge of the black hole drawn in the imagination) emits energy like electromagnetic waves. "The black hole is not a perfect black (not to release anything)." To a little more detailed explanation, there is always a pair of particles from the areas where nothing exists in the vacuum, and it is likely that they are repeatedly binding and disappearing again. At the center of the black hole of the event, even if particles occur, it will only be drawn to the black hole. However, on the horizon of the event, only one particles may fall into the black hole and the other may escape to the outside. Then, this escape particles can be observed as the energy released by black holes from the outside world, that is, hooking radiation. On the other hand, the particle that fell in the black hole loses a partner and is negative in energy, absorbing energy from the entire black hole. Dr. Hawking said that the black hole would eventually evaporate as the phenomenon was repeated for a long time. Stein Hower has produced "Artificial Black Hall" for seven years for his experiment. In the artificial black hole, the gas in a state called Bose Einstein condensed, which can be obtained by cooling the gas to the absolute zero degree, and accelerates it to accelerate more than the sound speed by using a laser at a certain position. Create the horizon of the event.

Then, a pair of phonons (sound, sound quantum, volume child) are generated on the horizon of this acoustic event, one of the phonons is emitted from the black hole, and one phonon is caught in the black hole. It was confirmed that a similar phenomenon as Hawking radiation occurred. Stein Hower states that the pair of high -energy phonons shows a quantum tangling state, which is an important evidence of hooking radiation. Some of the scholars who heard this experiment result are incomplete results due to the fact that the phonnon's stuffed state is not observed in a low -energy state, but on the other hand, Hawking radiation is simulated. This is the first thing that has been reproduced, and some say that if the experiment result is not defective, it will be as difficult as the detection of Higgs particles. Perhaps there is a story that Dr. Hawking won the Nobel Prize in this experiment. The paper is Nature Physics "Observation of Quantum Hawking Radiation and ITS Entanglement in An Analogue Black Hole: JeffFFFFFFFFFFTEINHAUER" [Image: not]

Engadget Logo エンガジェット日本版 7年かけて作った「人工ブラックホール」でホーキング放射を初観測。ブラックホールが完全にブラックではない証拠になるか

Source: Nature Physics

VIA: Wired, Nature

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