# Three new roads to the Planck scale

@article{Faraoni2017ThreeNR, title={Three new roads to the Planck scale}, author={Valerio Faraoni}, journal={American Journal of Physics}, year={2017}, volume={85}, pages={865-869} }

Three new heuristic derivations of the Planck scale are described. They are based on basic principles or phenomena of relativistic gravity and quantum physics. The Planck scale quantities thus obtained are within one order of magnitude of the “standard” ones. We contemplate the pair creation of causal bubbles so small that they can be treated as particles, the scattering of a matter wave off the background curvature of spacetime that it induces, and the Hawking evaporation of a black hole in a…

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