Entropic information of dynamical AdS/QCD holographic models

Abstract

The Shannon based conditional entropy that underlies five-dimensional Einstein-Hilbert gravity coupled to a dilaton field is investigated in the context of dynamical holographic AdS/QCD models. Considering the UV and IR dominance limits of such AdS/QCD models, the conditional entropy is shown to shed some light onto the meson classification schemes, which corroborate with the existence of light-flavour mesons of lower spins in Nature. Our analysis is supported by a correspondence between statistical mechanics and information entropy which establishes the physical grounds to the Shannon information entropy, also in the context of statistical mechanics, and provides some specificities for accurately extending the entropic discussion to continuous modes of physical systems. From entropic informational grounds, the conditional entropy allows one to identify the lower experimental/phenomenological occurrence of higher spin mesons in Nature. Moreover, it introduces a quantitative theoretical apparatus for studying the instability of high spin light-flavour mesons.

11 pages, 7 figures; statistical mechanics grounds of conditional entropy, deformed D4-D8 (Sakai-Sugimoto) soft-wall model, and the large N suppression regime, included. To appear in Phys. Lett. B

References in corpus (7)

• Linear Confinement and AdS/QCD
• Light scalar mesons in the soft-wall model of AdS/QCD
• Dynamical holographic QCD with area-law confinement and linear Regge trajectories
• Logarithmic correction in the deformed ${\mathrm{AdS}}_5$ model to produce the heavy quark potential and QCD beta function
• Bounds on topological Abelian string-vortex and string-cigar from information-entropic measure
• High-spin mesons below 3 GeV
• Hadrons in AdS/QCD models

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