Scientists successfully imitate the gravitational state of a black hole by creating a 'quantum tornado' in an experimental device
A research team from the University of Nottingham, King's College London, and Newcastle University uses an experimental device using superfluid cryogenic liquid helium to create a 'quantum tornado', creating a state similar to the gravitational state of a rotating black hole. announced that it was a success.
News - Quantum tornado provides gateway to understanding black holes - University of Nottingham
Rotating curved spacetime signatures from a giant quantum vortex | Nature
https://www.nature.com/articles/s41586-024-07176-8
'Quantum tornado' allows scientists to mimic a black hole on Earth | Space
https://www.space.com/quantum-tornado-black-hole-physics-simulation-absolute-zero
The following is an experimental device containing liquid helium at an extremely low temperature of nearly minus 271 degrees Celsius, built by Dr. Patrick Svankara of the University of Nottingham and his colleagues.
©Leonardo Solidoro
The research team says that ``the similarity between gravity and fluids requires the disappearance of viscosity.'' When the viscosity of the liquid disappears, atoms that would normally not be able to pass through the container will rise up the wall and overflow from the container. We used ``superfluidity,'' which allows liquid to flow out of even one gap.
The University of Tokyo Low Temperature Science Research Center - Superfluidity of liquid helium
According to Dr. Svankara, superfluid cryogenic liquid helium contains 'quantum vortices' that tend to spread apart from each other.
In this experiment, the research team succeeded in trapping tens of thousands of quanta in a small quantum tornado, creating a vortex with record strength for a quantum fluid.
They found an interesting similarity between the flow of this vortex and the effect that a black hole has on the surrounding space-time.
This result is said to open a new path in the simulation of finite-temperature quantum field theory in complex regions of curved space-time.
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in Science, Posted by logc_nt