December 7, 2022

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Scientists have created a black hole in the laboratory

A group of scientists from the University of Amsterdam has created a black hole in the laboratory to observe particles generated by quantum level fluctuations, in an attempt to link the general theory of relativity with quantum physics. Since nothing escapes a black hole’s gravity – not even light – researchers study these fluctuations with radiation from the event horizon, Hawking radiation.

A series of one-dimensional atoms acted as a pathway for the electron’s motion, and by “exciting” that motion, scientists could make certain properties disappear, creating a sort of event horizon that interacts with the wave nature of the electrons. The result produced a temperature increase that fits their theoretical calculations in a black hole system, but only when a piece of the string extends beyond the event horizon.

What they found may mean that quantum entanglement of particles in the event horizon is important in the production of Hawking radiation. The radiation they observed during the experiment was only thermal within a certain range of the electron’s motion. In a broader context, this could mean that in real black holes, Hawking radiation can only be thermal in certain situations and when there is only one change in space-time due to gravity.

It’s not clear what this means for quantum gravity, but the model offers a new way to study the birth of Hawking radiation in an environment unaffected by the forces of creation of a black hole.

This may open a new way to explore fundamental questions of quantum mechanics, along with gravity and warped space-time in the case of a vast condensed matter.

Research published in Physical review research.

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