Spacetime foam
arXiv:gr-qc/0201022 · doi:10.1142/S0218271802002931
Abstract
Spacetime is composed of a fluctuating arrangement of bubbles or loops called spacetime foam, or quantum foam. We use the holographic principle to deduce its structure, and show that the result is consistent with gedanken experiments involving spacetime measurements. We propose to use laser-based atom interferometry techniques to look for spacetime fluctuations. Our analysis makes it clear that the physics of quantum foam is inextricably linked to that of black holes. A negative experimental result, therefore, might have non-trivial ramifications for semiclassical gravity and black hole physics.
7 pages, LaTeX; will appear in the Dec. 2002 special issue of Int. J. Mod. Phys. D (this essay received an honorable mention in the GRF essay contest)
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- Coherent States for 3d Deformed Special Relativity: semi-classical points in a quantum flat spacetime
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- Space--time fluctuations and the spreading of wavepackets
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- Can Lightcone Fluctuations be Probed with Cosmological Backgrounds?
- Coupling q-deformed dark energy to dark matter
- Interacting dark matter and q-deformed dark energy non-minimally coupled to gravity
- Spontaneous decoherence as a result of randomness in the flow of time