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| Physicists have discovered a new quantum property |
A new form of quantum correlation in theory.
Physicists have discovered a new quantum property
Quantum entanglement is a quantum mechanical phenomenon, in which the quantum states of at least two objects must be depicted about each other, even if the individual objects are spatially separated.
What if three pairs of entangled photons are placed in a network?
According to a new study, this arrangement will allow a new form of quantum correlation in theory.
When scientists forced two photons from different pairs to be entangled, a connection was also made to their twin photons present elsewhere in the network, which is a highly-correlated triangle. Scientists suggest that it will create new applications in cryptography while reviving quantum physics at its most fundamental level.
Entanglement is a consequence of quantum mechanics that allows the properties of two or more photons. Each action on one of the two photons has an effect on its "twin" photon.
Nicholas Bruner, Associate Professor in the Department of Applied Physics at UNIGE's Faculty of Sciences, said, "Quantum non-localism was theoretically discovered by John Stewart Bell in 1964. This showed that photon correlation is exclusively quantum, and hence it is Cannot be explained. By traditional physics. This principle can be used to generate ultra-secure encryption keys. "
To learn about the implications of this theory of quantum non-localism when multiple pairs of photons are placed in a network, scientists conducted an experiment, which consisted of three pairs of photons that were then separated and a triangle The builders were spread over three points.
Marc-Olivier Renaw, who is also a researcher in the Department of Applied Physics, said, "On each vertex, two photons of a different pair are processed simultaneously."
Scientists later measure two photons at each vertex of the triangle before forcing them to interact with each other. He eventually showed that no local physical theory can interpret the data generated from these measurements. Also, these data are so strongly correlated that they represent a new form of quantum correlations. This could become a new version of Bell's theorem, which is specific to quantum networks.
Nicholas Guisin, a professor at the UNIGE Department of Applied Physics, said, "This important theoretical discovery underscores the power of quantum correlations in networks that far exceed what researchers originally thought possible. The next step in the laboratory Events have to be monitored. This is not a child's play, because experimenting with it is still extremely difficult for the time being. "