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A desktop quantum experiment jointly conducted by the UK and the Netherlands can detect gravitational waves
[ Instrument network instrument research and development ] Einstein's theory of general relativity is one of the oldest predictions-gravity theory believes that space-time is a structure that is bent and bent due to the existence of matter and energy-is the accelerated mass in the universe in the space structure Produce ripples: gravitational waves. But Einstein’s concept of gravity is still classic. For example, space and time are continuous entities, rather than discrete entities. The predictions of this theory will fail when there is a very small distance and a very large magnetic field. A meaningless answer), and for inherent quantum systems, such as electrons encountering double slits, there is no way to calculate the gravitational field.
We have every reason to believe that to some extent, gravity will confirm the quantum theory of relativity, although we have not yet any experimental evidence to prove it. But with the direct detection of gravitational waves by LIGO, we have every reason to believe that the existence of these gravitational waves is the proof—the first proof—that gravity is indeed the key to an essential quantum force.
On July 1, the University College London (UCL) announced that the research team of UCL, the University of Warwick and the University of Groningen in the Netherlands designed a desktop detector based on quantum technology in the laboratory, using extremely sensitive nano-scale diamonds. Crystals can detect intermediate frequency gravitational waves.
The desktop detector uses nanometer diamond crystals weighing 10-17 kilograms, and uses Stern-Gerlach interferometry to place the crystals in the quantum superposition space. The detector is 4000 times smaller than the current laser interferometer Gravitational Wave Observatory (LIGO) detector.
In the next step, the team will work with experimenters to start building a prototype of the device. More importantly, such detectors may also help determine whether gravity is quantum force. The research was published in "New Physics" on July 1, and was funded by the Netherlands Organization for Scientific Research, the Royal Society, and the Engineering and Natural Sciences Research Council.
(Original title: A desktop quantum experiment jointly conducted by the United Kingdom and the Netherlands can detect gravitational waves)