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Do we live in the Matrix? Researchers found way to prove it

Do we live in the Matrix? Researchers found way to prove it 1

Is the real world real? Physicists say they have come up with a way of determining whether the world we experience is actually a computer simulation, as imagined in The Matrix trilogy of films

All we have to do to identify what these constraints would be is to build our own simulation of the universe, which is close to what many researchers are trying to do on an incredibly miniscule scale.

Computer simulations have been run to recreate quantum chromodynamics – the theory that describes the nuclear forced that binds quarks and gluons into protons and neutrons, which then bind to form atomic nuclei.

It is believed that simulating physics on this fundamental level is equivalent, more or less, to simulating the workings of the universe itself.

Even operating on this vanishingly small scale, the maths is pretty difficult so, despite using the world’s most powerful supercomputers, physicists as yet have only managed to simulate regions of space on the femto-scale.

To put that in context, a femtometre is 10^-15 metres – that’s a quadrillionth of a metre or 0.000000000001mm.

However, the main problem with all such simulations is that the law of physics have to be superimposed onto a discrete three-dimensional lattice which advances in time. And that’s where the test comes in.

Professor Beane and his colleagues say this lattice spacing imposes a limit on the energy that particles can have, because nothing can exist that is smaller than the lattice itself.

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This means that if the universe as we know it is actually a computer simulation, there ought to be a cut off in the spectrum of high energy particles. And it just happens that there is exactly this kind of cut off in the energy of cosmic rays, a limit known as the Greisen–Zatsepin–Kuzmin (GZK) cut off.

As the Physics arXiv blog explains, this cut off is well-studied and happend because high energy particles interacting with the cosmic microwave background lose energy as they travel across long distances.

The researchers calculate that the lattice spacing forces additional features on the spectrum, most strikingly that the cosmic rays would prefer to travel along the axes of the lattice. This means they wouldn’t observed equally in all directions.

That would the acid test that the researchers are searching for – an indication that all is not at it seems with the universe. Excitingly, it’s also a measurement we could do now with our current levels of technology.

That said, the finding is not without its caveats. One problem Professor Beane identifies is that the simulated universe could be constructed in an entirely different way to how they have envisaged it.

Moreover, the effect is only measurable if the lattice cutoff is the same as the GZK cutoff, any smaller than that and the observations will draw a blank.

Professor Beane and his colleagues’ findings are reported in Cornell University’s arXiv journal.

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