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PreprintarXiv licencearXiv

Inaccessibility of the Cosmological Singularity to Quantum Probes

  • Vishnulal Cheriyodathillathu
  • Saurya Das
  • Soumen Basak
  • Tanmay Patil
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Abstract

We propose an operational resolution of the FLRW big bang singularity using quantum probes satisfying a curvature coupled Klein-Gordon equation. Applying the Madelung-Bohm decomposition of a Klein-Gordon field on a classical near-singularity FLRW background, we show that the induced conformal geometry renders curvature invariants finite and makes past directed causal geodesics complete. The classical big bang surface is therefore inaccessible to this class of quantum probes in finite effective proper time, while the underlying FLRW spacetime remains singular.

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Cite

BibTeXRIS
BibTeX
@misc{cheriyodathillathu2026inaccessibility,
  title = {{Inaccessibility of the Cosmological Singularity to Quantum Probes}},
  author = {Vishnulal Cheriyodathillathu and Saurya Das and Soumen Basak and Tanmay Patil},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.30071},
  eprint = {2610.30071},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.30071},
}
RIS
TY  - UNPB
TI  - Inaccessibility of the Cosmological Singularity to Quantum Probes
AU  - Vishnulal Cheriyodathillathu
AU  - Saurya Das
AU  - Soumen Basak
AU  - Tanmay Patil
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.30071
UR  - https://arxiv.org/abs/2610.30071
AB  - We propose an operational resolution of the FLRW big bang singularity using quantum probes satisfying a curvature coupled Klein-Gordon equation. Applying the Madelung-Bohm decomposition of a Klein-Gordon field on a classical near-singularity FLRW background, we show that the induced conformal geometry renders curvature invariants finite and makes past directed causal geodesics complete. The classical big bang surface is therefore inaccessible to this class of quantum probes in finite effective proper time, while the underlying FLRW spacetime remains singular.
ER  -