English

Reverse quantum speed limit and minimum Hilbert space norm

Quantum Physics 2022-03-29 v2

Abstract

The reverse quantum speed limit (RQSL) gives an upper limit to the time for evolution between initial and final quantum states. We show that, in conjunction with the existence of a minimum time scale, the RQSL implies a lower limit to the norm of the change in a quantum state, and confirm that this limit is satisfied in two-state and ideal-measurement models. Such a lower limit is of relevance for interpretational issues in probability and for understanding the meaning of probability in Everett quantum theory.

Keywords

Cite

@article{arxiv.2110.01369,
  title  = {Reverse quantum speed limit and minimum Hilbert space norm},
  author = {Mark A. Rubin},
  journal= {arXiv preprint arXiv:2110.01369},
  year   = {2022}
}

Comments

Expanded discussion regarding significance for interpretation of probability and Everett quantum theory. 12 pp

R2 v1 2026-06-24T06:36:11.704Z