A note on DSR

Carlo Rovelli

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arXiv · 0808.3505

A note on DSR

Carlo Rovelli

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Abstract

I study the physical meaning of Deformed, or Doubly, Special Relativity (DSR). I argue that DSR could be physically relevant in a certain large-distance limit. I consider a concrete physical effect: the gravitational slowing down of time due to the gravitational potential well of a massive-particle, and its effect on the dynamics of the particle itself. I argue that this physical effect can survive in a limit in which gravitation and quantum mechanics can be disregarded, and that taking it into account leads directy to the Girelli-Livine DSR formalism. This provides a physical interpretation to the corresponding 5d spacetime, and a concrete physical derivation of DSR.

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Carlo Rovelli. 2008-08-29. A note on DSR. https://arxiv.org/abs/0808.3505

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