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chronon
A hypothetical quantum or particle of time. It has been suggested that just as energy can only exist in very small packets or quanta, so time may also be quantal in nature. This idea is linked to the overall quantization of space and time, so that there exists a minimum spatial displacement, and a corresponding minimum time, the chronon, which would be the time needed for light to cross such a distance. One possibility is that under certain extreme physical conditions, such as those prevailing in and around a black hole, spacetime quantization effects could manifest themselves.
Related categories
• SPACE AND TIME
• PARTICLE PHYSICS
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