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Gravitational redshift as a quantum channel: modeling the effects of gravitational redshift in quantum optics — arXiv:2608.03549

Source: arXiv (en)
Original: https://arxiv.org/abs/2608.03549
License (as archived): CC0-1.0
Archived: 2026-10-31T13:11:39.064Z
SHA-256 of the archived text: a186f773c2fc835992a288105a6ce4faa57485a665f84065cd4e3f8d4b68ba31
Stable URL of this page: https://metraipolis.com/documento/dc_4ebdb221d384

How to cite

Gravitational redshift as a quantum channel: modeling the effects of gravitational redshift in quantum optics — arXiv:2608.03549 — arXiv (en), https://arxiv.org/abs/2608.03549 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_4ebdb221d384 (Metraipolis archive dc_4ebdb221d384, sha256 a186f773c2fc835992a288105a6ce4faa57485a665f84065cd4e3f8d4b68ba31)

BibTeX

@misc{dc4ebdb221d384,
  title = {Gravitational redshift as a quantum channel: modeling the effects of gravitational redshift in quantum optics — arXiv:2608.03549},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2608.03549},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_4ebdb221d384; sha256 a186f773c2fc835992a288105a6ce4faa57485a665f84065cd4e3f8d4b68ba31},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2608.03549. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The gravitational frequency shift of light is well understood in the theory of classical electromagnetism. Nevertheless, its description in quantum theory is not yet fully developed. Recent work pointed out inconsistencies in previously developed models aimed at describing the gravitational redshift as an effective multi-mode mixer (MMM) acting on modes of light, but so far a complete solution of these issues was not obtained. Here, we identify the root cause of the MMM model's inconsistency and provide two complementary approaches to correct it: a "natural" one from a field-theoretic perspective, and another adapted to the language of quantum mechanics of finite-dimensional systems. We show that the second approach allows for modeling of the redshift in a multi-mode transmission setup as a quantum channel that can be characterized using standard quantum information-theoretic techniques when restricting the input states to Gaussian states of light.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-08-05 in quant-ph).
Categorie arXiv: Quantum Physics (quant-ph) ; General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2608.03549 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-31T13:00:19.525Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-08-05?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).