1,471 research outputs found

    The Next 1616 Higher Spin Currents and Three-Point Functions in the Large N=4{\cal N}=4 Holography

    Full text link
    By using the known operator product expansions (OPEs) between the lowest 1616 higher spin currents of spins (1,32,32,32,32,2,2,2,2,2,2,52,52,52,52,3)(1, \frac{3}{2}, \frac{3}{2}, \frac{3}{2}, \frac{3}{2}, 2,2,2,2,2,2, \frac{5}{2}, \frac{5}{2}, \frac{5}{2}, \frac{5}{2}, 3) in an extension of the large N=4{\cal N}=4 linear superconformal algebra, one determines the OPEs between the lowest 1616 higher spin currents in an extension of the large N=4{\cal N}=4 nonlinear superconformal algebra for generic NN and kk. The Wolf space coset contains the group G=SU(N+2)G =SU(N+2) and the affine Kac-Moody spin 11 current has the level kk. The next 1616 higher spin currents of spins (2,52,52,52,52,3,3,3,3,3,3,72,72,72,72,4)(2,\frac{5}{2}, \frac{5}{2}, \frac{5}{2}, \frac{5}{2}, 3,3,3,3,3,3, \frac{7}{2}, \frac{7}{2}, \frac{7}{2}, \frac{7}{2},4) arise in the above OPEs. The most general lowest higher spin 22 current in this multiplet can be determined in terms of affine Kac-Moody spin 12,1\frac{1}{2}, 1 currents. By careful analysis of the zero mode (higher spin) eigenvalue equations, the three-point functions of bosonic higher spin 2,3,42, 3, 4 currents with two scalars are obtained for finite NN and kk. Furthermore, we also analyze the three-point functions of bosonic higher spin 2,3,42, 3, 4 currents in the extension of the large N=4{\cal N}=4 linear superconformal algebra. It turns out that the three-point functions of higher spin 2,32,3 currents in the two cases are equal to each other at finite NN and kk. Under the large (N,k)(N,k) 't Hooft limit, the two descriptions for the three-point functions of higher spin 44 current coincide with each other. The higher spin extension of SO(4)SO(4) Knizhnik Bershadsky algebra is described.Comment: 94 pages; The 43 and 44 pages added, the mathematica notebook files included and to appear epj

    Organizing Pneumonia by Paragonimiasis and Coexistent Aspergilloma Manifested as a Pulmonary Irregular Nodule

    Get PDF
    Organizing pneumonia by paragonimiasis and coexistent aspergilloma as a pulmonary nodule is a rare case of lung disease. Its radiographic or CT feature has not been described before in the radiologic literature. We present organizing pneumonia by paragonimiasis and coexistent aspergilloma manifested as a pulmonary irregular nodule on CT

    GaAs droplet quantum dots with nanometer-thin capping layer for plasmonic applications

    Full text link
    We report on the growth and optical characterisation of droplet GaAs quantum dots with extremely-thin (11 nm) capping layers. To achieve such result, an internal thermal heating step is introduced during the growth and its role in the morphological properties of the quantum dots obtained is investigated via scanning electron and atomic force microscopy. Photoluminescence measurements at cryogenic temperatures show optically stable, sharp and bright emission from single quantum dots, at near-infrared wavelengths. Given the quality of their optical properties and the proximity to the surface, such emitters are ideal candidates for the investigation of near field effects, like the coupling to plasmonic modes, in order to strongly control the directionality of the emission and/or the spontaneous emission rate, crucial parameters for quantum photonic applications.Comment: 1 pages, 3 figure
    corecore