• Corpus ID: 15268773

Could deformed special relativity naturally arise from the semiclassical limit of quantum gravity

@article{Smolin2008CouldDS,
  title={Could deformed special relativity naturally arise from the semiclassical limit of quantum gravity},
  author={Lee Smolin},
  journal={arXiv: High Energy Physics - Theory},
  year={2008}
}
  • L. Smolin
  • Published 27 August 2008
  • Physics
  • arXiv: High Energy Physics - Theory
A argument is described for how deformed or doubly special relativity (DSR) may arise in the semiclassical limit of a quantum theory of gravity. We consider a generic quantum theory of gravity coupled to matter, from which we use only the assumption that a Hamiltonian constraint is imposed. We study circumstances in which �;GN and~ all may be separately neglected, but there may arise terms in the ratio of particle energies to M P l = p ~=G which are small but measurable. Such cases include… 

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References

SHOWING 1-10 OF 27 REFERENCES

Quantum symmetry, the cosmological constant and Planck scale phenomenology

We present a simple algebraic mechanism for the emergence of deformations of Poincar? symmetries in the low-energy limit of quantum theories of gravity. The deformations, called ?-Poincar? algebras,

Quantum gravity with a positive cosmological constant

A quantum theory of gravity is described in the case of a positive cosmological constant in 3 + 1 dimensions. Both old and new results are described, which support the case that loop quantum gravity

Phenomenology of doubly special relativity

Investigations of the possibility that some novel "quantum" properties of space–time might induce a Planck-scale modification of the energy/momentum dispersion relation focused at first on scenarios

A note on DSR

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:

2+1 gravity and doubly special relativity

It is shown that gravity in 2+1 dimensions coupled to point particles provides a nontrivial example of doubly special relativity (DSR). This result is obtained by interpretation of previous results

Possible astrophysical probes of quantum gravity

A satisfactory theory of quantum gravity will very likely require modification of our classical perception of space-time, perhaps by giving it a 'foamy' structure at scales of order the Planck

Generalized Lorentz invariance with an invariant energy scale

The hypothesis that the Lorentz transformations may be modified at Planck scale energies is further explored. We present a general formalism for theories which preserve the relativity of inertial

Relativity in space-times with short distance structure governed by an observer independent (Planckian) length scale

I show that it is possible to formulate the Relativity postulates in a way that does not lead to inconsistencies in the case of spacetimes whose short-distance structure is governed by an

Introduction to Quantum-Gravity Phenomenology

After a brief review of the first phase of development of Quantum-Gravity Phenomenology, I argue that this research line is now ready to enter a more advanced phase: while at first it was legitimate