The Universe, where space-time becomes discrete

The Universe, where space-time becomes discrete Trieste, Italy (SPX) Apr 25, 2016 - Our experience of space-time is that of a continuous object, without gaps or discontinuities, just as it is described by classical physics. For some quantum gravity models however, the texture of space-time is "granular" at tiny scales (below the so-called Planck scale, 10-33 cm), as if it were a variable mesh of solids and voids (or a complex foam). One of the great problems of physics today is ... more

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