麻豆淫院

A team of physicists affiliated with multiple institutions in China has measured a pulse of light in 37 dimensions. In their paper in Science Advances, the group explains that their experiment was meant to demonstrate that quantum mechanics is more nonclassical than thought.

Quantum mechanics involves how things work at the subatomic level, while general relativity describes classical theory, which has aspects of what physicists call local realism, where things happen around us in the ways that we expect them to happen and in the order we expect.

麻豆淫院icists have tried and failed to unite the two theories for decades. The problem has only grown more difficult in recent years as research efforts have shown that the differences between them are greater than thought. In this new effort, the researchers in China sought to see how far nonclassical quantum mechanics differs from classical theory by carrying out an experiment to demonstrate the Greenberger鈥揌orne鈥揨eilinger (GHZ) paradox.

The GHZ state, developed by David Greenberger, Michael Horne and Anton Zeilinger in 1989, is, in its simplest form, an entangled quantum state that involves a minimum of three subsystems. The GHZ state predicts outcomes that defy classical theory, such as mathematical impossibilities, like 1 = -1, giving rise to a paradox.

To demonstrate the GHZ paradox in a real-world setting, the research team found a way to produce photons that exist in 37 dimensions using coherent light from a laser, entanglement and a fiber-based photonic processor. This achievement involved far more dimensions than the three required to satisfy the GHZ paradox.

According to the researchers, the experiment helps to clarify some of the unknowns in quantum theory on a deeply fundamental level. They also suggest that quantum mechanics is even more nonclassical than physicists have thought. They say that despite a century of study, scientists are still just seeing the very tip of the quantum iceberg. They conclude that their experiment opens the door to new avenues of research surrounding various aspects of quantum mechanics.

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