English

The minimal length and the Shannon entropic uncertainty relation

Quantum Physics 2016-05-03 v2 High Energy Physics - Theory

Abstract

In the framework of the generalized uncertainty principle, the position and momentum operators obey the modified commutation relation [X,P]=i(1+βP2)[X,P]=i\hbar\left(1+\beta P^2\right) where β\beta is the deformation parameter. Since the validity of the uncertainty relation for the Shannon entropies proposed by Beckner, Bialynicki-Birula, and Mycieslki (BBM) depends on both the algebra and the used representation, we show that using the formally self-adjoint representation, i.e., X=xX=x and P=tan(βp)/βP=\tan\left(\sqrt{\beta}p\right)/\sqrt{\beta} where [x,p]=i[x,p]=i\hbar, the BBM inequality is still valid in the form Sx+Sp1+lnπS_x+S_p\geq1+\ln\pi as well as in ordinary quantum mechanics. We explicitly indicate this result for the harmonic oscillator in the presence of the minimal length.

Keywords

Cite

@article{arxiv.1603.06869,
  title  = {The minimal length and the Shannon entropic uncertainty relation},
  author = {Pouria Pedram},
  journal= {arXiv preprint arXiv:1603.06869},
  year   = {2016}
}

Comments

9 pages, 3 figures