English

Quantum Tsallis entropy and projective measurement

Data Analysis, Statistics and Probability 2009-04-27 v1 Computational Physics

Abstract

It is well known that projective measurement will not decrease the von Neumann entropy of a quantum state. In this paper, it is shown that projective measurement will not decrease the quantum Tsallis entropy of a quantum state, either. Using a similar analysis, it can be shown that projective measurement will not decrease the quantum unified (r, s)-entropy in general.

Cite

@article{arxiv.0904.3794,
  title  = {Quantum Tsallis entropy and projective measurement},
  author = {Marko V. Jankovic},
  journal= {arXiv preprint arXiv:0904.3794},
  year   = {2009}
}

Comments

7 pages

R2 v1 2026-06-21T12:54:40.844Z