• Corpus ID: 117897016

Time in quantum gravity and black-hole information paradox

@article{Nikoli2011TimeIQ,
  title={Time in quantum gravity and black-hole information paradox},
  author={Hrvoje Nikoli{\'c}},
  journal={arXiv: General Relativity and Quantum Cosmology},
  year={2011}
}

• H. Nikolić
• Published 14 January 2011
• Physics, Philosophy
• arXiv: General Relativity and Quantum Cosmology

The fact that canonical quantum gravity does not possess a fundamental notion of time implies that the theory is unitary in a trivial sense. At the fundamental level, this trivial unitarity leaves no room for a black-hole information loss. Yet, a phenomenological loss of information may appear when some matter degrees of freedom are reinterpreted as a clock-time. This explains how both fundamental unitarity and phenomenological information loss may peacefully coexist, which offers a resolution of the black-hole information paradox.