Lorentz invariant mass and length scales

Abstract

We show that the standard Lorentz transformations admit an invariant mass (length) scale, such as the Planck scale. In other words, the frame independence of such scale is built-in within those transformations, and one does not need to invoke the principle of relativity for their invariance. This automatically ensures the frame-independence of the spectrum of geometrical operators in quantum gravity. Furthermore, we show that the above predicts a small but measurable difference between the inertial and gravitational mass of any object, regardless of its size or whether it is elementary or composite.

arXiv comment10 pages

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• Minimal-length quantum field theory: a first-principle approach
• A novel mechanism for probing the Planck scale with wavepackets following general distributions
• Non-local imprints of gravity on quantum theory