English

Quantum singularities in a solvable toy model

Quantum Physics 2024-12-11 v1 General Relativity and Quantum Cosmology

Abstract

Via elementary examples it is demonstrated that the singularities of classical physics (sampled by the Big Bang in cosmology) need not necessarily get smeared out after quantization. It is proposed that the role of quantum singularities can be played by the so called Kato's exceptional-point spectral degeneracies.

Keywords

Cite

@article{arxiv.2407.14672,
  title  = {Quantum singularities in a solvable toy model},
  author = {Miloslav Znojil},
  journal= {arXiv preprint arXiv:2407.14672},
  year   = {2024}
}

Comments

12 pp, 6 figures

R2 v1 2026-06-28T17:47:57.243Z