default | grid-3 | grid-2

Post per Page

Lab-Made Sonic Black Hole Confirms Hawking’s Predictions

Extreme objects and black holes are places where gravity is so strong that nothing can escape—not even light. Our most cutting-edge theories, quantum physics, and general relativity have been used to explain them, but there is a problem in that the two don't mesh well.

One of many physicists from all around the world whose work attempted to explain the intricacy of these things was the late professor Stephen Hawking. Hawking's radiation was one of his most significant contributions to this field of study. According to this idea, black holes release particles that sap an object's energy a little amount. Given that particles do really escape from black holes, this information shows that they are not completely black. Additionally, he proposed that the radiation would be thermal and that temperature would depend on the object's surface area.

Real black holes can't be created in a lab, at least not yet. Researchers had to go outside the box to build a comparable testing area to validate his idea. In the past, scientists simulated black holes using water and waves. Another, known as a sonic black hole, has been very useful in putting Hawking's theory to the test. The Israel Institute of Technology's Jeff Steinhauer built an acoustic black hole in 2016. This situation is akin to a black hole in that sound waves must travel faster than the speed of sound to escape.

To test Hawking's predictions in fresh ways, Steinhauer and colleagues have now improved on the first setup from three years ago. His group has improved the system's thermal and mechanical stability, decreased magnetic field noise, and created better optics for system analysis.

The research, which was published in the journal Nature, demonstrated that Professor Hawking's predictions about the noisy black hole were accurate. According to the British physicist's hypothesis, a black hole's temperature is influenced by its surface gravity, entropy, and Hawking radiation. Steinhauer's experiment also revealed this connection, supporting Hawking's findings.

Relativity and quantum physics do not coexist well, as was already noted. Physics experts must develop approximations that function under certain circumstances in order to make them cohesive. Professor Steinhauer previously said to IFLScience, "The objective of investigating black holes is to learn about the new rules of physics, not simply about black holes themselves.

Take space-time as an example; each component will possess a specific quantity of energy. This energy has the potential to abruptly transform into a particle-antiparticle pair, which might then interact again and return to being energy.

What transpires if the pair forms on an event horizon, the boundary beyond which nothing can elude a black hole's gravitational pull? One particle will enter the black hole in this scenario, while the other will escape, removing a little amount of energy from the space-time surrounding the black hole.

No comments

Error Page Image

Error Page Image

Oooops.... Could not find it!!!

The page you were looking for, could not be found. You may have typed the address incorrectly or you may have used an outdated link.

Go to Homepage