English

Algorithmic information and simplicity in statistical physics

High Energy Physics - Theory 2009-09-25 v1

Abstract

Given a list of NN states with probabilities 0<p1pN0<p_1\leq\cdots\leq p_N, the average conditional algorithmic information Iˉ\bar I to specify one of these states obeys the inequality HIˉ<H+O(1)H\leq\bar I<H+O(1), where H=pjlog2pjH=-\sum p_j\log_2p_j and O(1)O(1) is a computer-dependent constant. We show how any universal computer can be slightly modified in such a way that the inequality becomes HIˉ<H+1H\leq\bar I<H+1, thereby eliminating the computer-dependent constant from statistical physics.

Cite

@article{arxiv.hep-th/9409022,
  title  = {Algorithmic information and simplicity in statistical physics},
  author = {R. Schack},
  journal= {arXiv preprint arXiv:hep-th/9409022},
  year   = {2009}
}

Comments

15 pages in REVTEX 3.0, 3 postscript figures in uuencoded format, submitted to Physical Review E