Quantum Sensors and Metrology
Axions are hypothetical elementary particles proposed as a solution to the strong CP (Charge Parity) problem in quantum chromodynamics, and they are also considered a candidate for dark matter. These particles are predicted to have very low mass and interact very weakly with other matter, making them difficult to detect. The existence of axions could provide insights into both dark matter phenomena and the fundamental nature of gravity and spacetime.
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