The Lambert–Tsallis Wq function

G.B. da Silva and R.V. Ramos

Physica A: Statistical Mechanics and its Applications, 2019, vol. 525, issue C, 164-170

Abstract: In the present work, we introduce the Lambert–Tsallis Wq function. It is a generalization of the Lambert W function, that solves the equation Wq(z)expq(Wq(z)) = z, where expq(z) is the q-exponential used by Tsallis in nonextensive statistical mechanics. Here, we show some analytical results and its numerical calculation. We also introduce the disentropy, a function based on Wq that plays the opposite role of the entropy. At last, we use the disentropy for calculation of the disentanglement of two-qubit states.

Keywords: Lambert W function; q-exponential; Entanglement (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437119302791
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:525:y:2019:i:c:p:164-170

DOI: 10.1016/j.physa.2019.03.046

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().