When Black Hole Firewalls pit theory of relativity against Quantum Mechanics.
A worldwide study reconciles the theory of black hole “firewalls,” which pits the two theories of general relativity and quantum mechanics against one another.
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Category: cosmology – Page 425
A new research paper published in Physical Review Letters has brought forward a significant new understanding of general relativity laws, and has found some strange physics taking place inside black holes. Specifically, that the direction of time could be reversed within them. Several physical procedures are perfectly symmetric in time. Take a pendulum for instance. If someone shows you a video of a pendulum swinging, you cannot differentiate if the video is actually moving forward or backward. But some processes are not symmetric at all. We can tell that a pendulum will ultimately slow because of friction and we know that it was triggered at some point, so we can give a temporal direction to physics. The directionality of time and our view of it was called the “Arrow of Time” by British astronomer Arthur Eddington, and it has been connected to the entropy of the cosmos.
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If you believe the creations of science fiction, black holes serve as gateways to other worlds, either distant parts of this universe or other universes entirely. But the reality might be more complicated than that. And outside of the sci-fi realm, dropping into a black hole is a bad idea.
Even so, it turns out that people who enter a black hole would have at least a slight chance of escaping, either back into their own world or to some exotic place. This is because black holes actually bend space itself, and so could bring points that are ordinarily distant from each other much closer together.
An oft-used analogy is the bending of a piece of paper. If you draw a line on the paper, it follows the paper’s shape and the line’s length is unchanged by bending the paper. But if you go through the paper, the end points of the line are much closer to one another. Understanding this requires diving into Einstein’s theory of relativity as applied to gravity. [5 Reasons We May Live in a Multiverse].
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Australia did it again! They have developed a chip for the nano-manipulation of light which establishes the NextGen of Optical Storage and processing.
An Australian research team has created a breakthrough chip for the nano-manipulation of light, paving the way for next gen optical technologies and enabling deeper understanding of black holes.
Led by Professor Min Gu at RMIT University in Melbourne, Australia, the team designed an integrated nanophotonic chip that can achieve unparalleled levels of control over the angular momentum (AM) of light.
The pioneering work opens new opportunities for using AM at a chip-scale for the generation, transmission, processing and recording of information, and could also be used to help scientists better understand the evolution and nature of black holes.
A near-record supermassive black hole discovered in a sparse area of the local universe indicates that these monster objects — this one equal to 17 billion suns — may be more common than once thought, according to University of California, Berkeley, astronomers.
Until now, the biggest supermassive black holes — those with masses around 10 billion times that of our sun — have been found at the cores of very large galaxies in regions loaded with other large galaxies. The current record holder, discovered in the Coma Cluster by the UC Berkeley team in 2011, tips the scale at 21 billion solar masses and is listed in the Guinness Book of World Records.
The newly discovered black hole is in a galaxy, NGC 1600, in the opposite part of the sky from the Coma Cluster in a relative desert, said the leader of the discovery team, Chung-Pei Ma, a UC Berkeley professor of astronomy and head of the MASSIVE Survey, a study of the most massive galaxies and black holes in the local universe with the goal of understanding how they form and grow supermassive.
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