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Quantum gravity

Physics from geometry

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Two recent developments suggest how familiar properties of gravity and matter may emerge from the quantum geometry that underlies loop quantum gravity.

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Figure 1: Is space loopy? In loop quantum gravity, space is fundamentally discrete and continuum is only an approximation.

TERESA IARIA 2004; PIO MONTI GALLERY, ROME

References

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Ashtekar, A. Physics from geometry. Nature Phys 2, 725–726 (2006). https://doi.org/10.1038/nphys447

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