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Quantum theory of asymptotically flat spacetimes

Carlos N. Kozameh* and Lautaro Zapata-Altuna

  • *Contact author: carlos.kozameh@unc.edu.ar
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Phys. Rev. D 112, 026021 – Published 17 July, 2025

DOI: https://doi.org/10.1103/9wp7-1vwx

Abstract

A quantum theory of asymptotically flat spacetimes is presented using the solutions of the null surface formulation (NSF) field equations in a perturbative scheme. Free-field commutation relations are given for the null free data of NSF at future or past null infinity, and the main variables of NSF are then used to define the interior points of the spacetime as labels and the metric of the spacetime as a derived quantum operator. A nontrivial scattering of gravitons is given.

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Phys. Rev. D 112, 026021– Published 17 July, 2025
  • Received 25 March 2025
  • Accepted 1 July 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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