Despite the popularity of black holes in scientific novels, there is still a lot to learn about black holes, the mysterious space area that was once thought to be completely lightless. In an article published in the August 20 issue of Physical Review Letters, Darthmout researchers propose a new way to create a black hole in a laboratory on a much smaller scale.
The new way to create a quantum-sized black hole will allow researchers to better understand what physicist Stephen Hawking has suggested more than 35 years ago: black holes are not entirely inactive. what; they release photons, known as Hawking radiation.
Paul Haw, author of the paper and graduate student at Dartmouth, said: 'Hawking showed that black holes radiate energy according to a thermal spectrum. His calculations are based on predictions of extremely high energy physics and quantum gravity. Since we have not yet obtained measurements from real black holes, we need to have some method to reproduce this phenomenon in the laboratory so that we can study it meticulously. '
In this paper, the researchers show a very short magnetic wave propagation line containing superconducting quantum-manipulation devices, or SQUIDs, that not only reproduce a phenomenon similar to a black hole, but also create a systems where high energy and quantum properties can be controlled directly in the laboratory. The authors write in the article: 'Therefore, in theory, this mechanism allows the understanding of quantum gravity effects'.
Miles Blencowe, another author of the article and a professor of physics and astronomy at Dartmouth, said: 'We can control the strength of the magnetic field to make the SQUID device possible. used to probe black hole radiation beyond what Hawking considered '. Other simulation plans have tried using liquid ultrasonic flow, supercooled Bose-einstein condensate and non-linear optical cable. However, the Hawking radiation predicted in these cases is very weak or obscured by conventional radiation that cannot be avoided due to the heating of the device, making it difficult to recognize Hawking radiation. Blencowe said: 'In addition to being able to study quantum gravity effects, our proposal could be a more efficient method of identifying Hawking radiation'.
In addition to Nation and Blencowe, other authors of the article include Alexander Rimberg at Dartmouth and Eval Buks at Technion in Haifa, Israel.