Fortschritte der Physik

Cover image for Vol. 63 Issue 3-4

Editor: Dieter Lüst, Wolfgang Schleich (Co-Editor)

Online ISSN: 1521-3978

Associated Title(s): Annalen der Physik

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AdS/CFT correspondence · black holes · conformal fields · cosmology · d-branes · gauge fields · gravity · Lie algebras · noncommutative geometry · quantum entanglement · quantum field theories · quantum gravity · quantum groups · quantum information · quantum physics · qubits · standard model · string theories · supergravity · supersymmetry ·

Recently Published Articles

  1. Strings of Minimal 6d SCFTs

    Babak Haghighat, Albrecht Klemm, Guglielmo Lockhart and Cumrun Vafa

    Article first published online: 21 APR 2015 | DOI: 10.1002/prop.201500014

    We study strings associated with minimal 6d SCFTs, which by definition have only one string charge and no Higgs branch. These theories are labelled by a number inline image with inline image or inline image. Quiver theories have previously been proposed which describe strings of SCFTs for inline image. For inline image the strings interact with the bulk gauge symmetry. In this paper we find a quiver description for the inline image string using Sen's limit of F-theory and calculate its elliptic genus with localization techniques. This result is checked using the duality of F-theory with M-theory and topological string theory whose refined BPS partition function captures the elliptic genus of the SCFT strings. We use the topological string theory to gain insight into the elliptic genus for other values of n.

  2. Non-perturbative studies of N=2 conformal quiver gauge theories

    S. K. Ashok, M. Billó, E. Dell'Aquila, M. Frau, R. R. John and A. Lerda

    Article first published online: 7 APR 2015 | DOI: 10.1002/prop.201500012

    We study inline image super-conformal field theories in four dimensions that correspond to mass-deformed linear quivers with n gauge groups and (bi-)fundamental matter. We describe them using Seiberg-Witten curves obtained from an M-theory construction and via the AGT correspondence. We take particular care in obtaining the detailed relation between the parameters appearing in these descriptions and the physical quantities of the quiver gauge theories. This precise map allows us to efficiently reconstruct the non-perturbative prepotential that encodes the effective IR properties of these theories. We give explicit expressions in the cases inline image, also in the presence of an Ω-background in the Nekrasov-Shatashvili limit. All our results are successfully checked against those of the direct microscopic evaluation of the prepotential à la Nekrasov using localization methods.

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    Issue Information: Fortschritte der Physik 3-4 / 2015

    Article first published online: 1 APR 2015 | DOI: 10.1002/prop.201570007

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    Cover Picture: Fortschritte der Physik 3-4 / 2015

    Article first published online: 1 APR 2015 | DOI: 10.1002/prop.201570006

    Thumbnail image of graphical abstract

    The cover page shows absorption images of four Bose-Einstein condensates generated consecutively during the nine seconds of free fall in a single launch of the catapult located at the bottom of the Bremen Drop Tower. The condensates were observed at different times (25, 50, 75 and 100 ms), illustrating the expansion of the wave-packet. This experiment was performed using in a miniaturized ultra-cold atom trap by the QUANTUS collaboration supported by the German Space Agency DLR. The graphics was designed by Jan Rudolph and Holger Ahlers from the group of Prof. Ernst Maria Rasel (Leibniz Universität Hannover).

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    Contents: Fortschritte der Physik 3-4 / 2015 (pages A5–A6)

    Article first published online: 1 APR 2015 | DOI: 10.1002/prop.201520004