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Photon gas at the Planck scale within the doubly special relativity

Author

Listed:
  • Chung, W.S.
  • Gavrilik, A.M.
  • Nazarenko, A.V.

Abstract

Within the approach to doubly special relativity (DSR) suggested by Magueijo and Smolin, a new algebraically justified rule of so-called κ-addition for the energies of identical particles is proposed. This rule permits to introduce the nonlinear κ-dependent Hamiltonian for one-mode multi-photon (sub)system. On its base, with different modes treated as independent, the thermodynamics of black-body radiation is explored within DSR, and main thermodynamic quantities are obtained. In their derivation, we use both the analytical tools within mean field approximation (MFA) and numerical evaluations based on exact formulas. The entropy of one-mode subsystem turns out to be finite (bounded). Another unusual result is the existence of threshold temperature above which radiation is present. Specific features of the obtained results are explained and illustrated with a number of plots. Comparison with some works of relevance is given.

Suggested Citation

  • Chung, W.S. & Gavrilik, A.M. & Nazarenko, A.V., 2019. "Photon gas at the Planck scale within the doubly special relativity," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 533(C).
    • Handle: RePEc:eee:phsmap:v:533:y:2019:i:c:s0378437119311306
    DOI: 10.1016/j.physa.2019.121928
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    Cited by:

    1. Rovenchak, Andrij & Sobko, Bohdana, 2019. "Fugacity versus chemical potential in nonadditive generalizations of the ideal Fermi-gas," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 534(C).

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