Quantum theory’s non-classical nature was described by the Greenberger-Horne-Zeilinger (GHZ) paradox, which shows how quantum mechanics can’t be explained by local realistic descriptions.
A new study takes this concept further, exploring its limits in high-dimensional systems. The experiment involves photons in 37 dimensions, extending the strange quantum world even more.
Quantum entanglement is a phenomenon where a particle’s state can be determined by examining an entangled pair, regardless of distance. This challenges classical physics and led Albert Einstein to call it “spooky action at a distance.” Quantum nonlocality, which describes objects being influenced across distances, contradicts local theory in the GHZ paradox.
This paradox, named after the physicists who described it in 1989, highlights mathematical impossibilities when particles can only be influenced by proximity. A new paper in Science Advances takes this concept further, exploring how un-classical particles of light behave.
The experiment created photons that existed in 37 dimensions, requiring multiple reference points. “This experiment shows that quantum physics is more nonclassical than many of us thought,” says Zhenghao Liu, a co-author. “We are still only seeing the tip of the iceberg.”
The researchers believe their findings open avenues for future research and potential quantum breakthroughs in high-dimensional systems. This study pushes the boundaries of our understanding, revealing new frontiers in the quantum world.
Source: https://www.popularmechanics.com/science/a63626808/37-dimensions-quantum-mechanics/