Results 131 to 140 of about 1,172 (213)

Anomalies and D-branes in the Dabholkar-Park background

Journal of High Energy Physics
We consider D-branes in the Dabholkar-Park (DP) background, a 9d orientifold theory obtained by gauging symmetry in the type IIB string theory compactified on a circle.
Hiroki Wada, Satoshi Yamaguchi
doaj   +1 more source

Quantum field theory of (p,0)-forms on kaehler manifolds [PDF]

In questa tesi abbiamo studiato la quantizzazione di una teoria di gauge di forme differenziali su spazi complessi dotati di una metrica di Kaehler. La particolarità di queste teorie risiede nel fatto che esse presentano invarianze di gauge riducibili ...
Cofano, Marco
core  

Constraints on the topology of Type IIB string theory

Journal of High Energy Physics
We discuss some topological constraints on Type IIB string theory that cannot be described by elementary characteristic classes. Anomaly cancellation of the worldvolume theory of a D3-brane requires a shifted Dirac quantization condition of the Ramond ...
Kazuya Yonekura
doaj   +1 more source

Anomalies and the Green-Schwarz Mechanism

Anomalies are a very powerful tool in constraining theories beyond the standard model. We give a pedagogical overview of some topics illustrating the important role played by spacetime anomalies in string theory.
Alvarez-Gaume, Luis, Vazquez-Mozo, Miguel A.   +1 more
core   +1 more source

(Non)renormalization of Anomalous Conductivities and Holography

, 2014
The chiral magnetic and the chiral vortical effects are recently discovered phenomena arising from chiral gauge and gravitational anomalies that lead to generation of electric currents in presence of magnetic field or vorticity.
Jansen, Aron, Sub String Theory Cosmology and ElemPart, Gursoy, U., Quantum Gravity, Strings and Elementary Particles, Umut Gürsoy, Aron Jansen   +5 more
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Topics in string theory and quantum gravity

, 1992
These are the lecture notes for the Les Houches Summer School on Quantum Gravity held in July 1992. The notes present some general critical assessment of other (non-string) approaches to quantum gravity, and a selected set of topics concerning what we ...
Alvarez-Gaume, Luis, Vazquez-Mozo, M.A.
core  

Heterotic Conformal Field Theory and Gepner’s Construction

, 1990
We discuss some general properties of heterotic conformal field theory in which conformal anomalies c are different for the left-moving and right-moving sectors.
Gangopadhyaya, Asim, Chang, Darwin, Wang, Jin, Kumar, Alok   +3 more
core   +1 more source

Varieties of four-dimensional gauge theories

Journal of High Energy Physics
We use algebraic geometry to study the anomaly-free representations of an arbitrary gauge Lie algebra for 4-dimensional spacetime fermions. For irreducible representations, the problem reduces to studying the Lie algebras 𝔰𝔲 n for n ≥ 3.
Ben Gripaios, Khoi Le Nguyen Nguyen
doaj   +1 more source

Enumerating 6D supergravities with T ≤ 1

Journal of High Energy Physics
The space of 6D supergravities with minimal supersymmetry is greatly constrained by anomaly cancellation. Nevertheless, a large number of models satisfy all low-energy consistency conditions and in this work we make progress towards exhaustively ...
Yuta Hamada, Gregory J. Loges
doaj   +1 more source

More varieties of 4-d gauge theories: product representations

Journal of High Energy Physics
Recently, we used methods of arithmetic geometry to study the anomaly-free irreducible representations of an arbitrary gauge Lie algebra. Here we generalize to the case of products of irreducible representations, where it is again possible to give a ...
Ben Gripaios, Khoi Le Nguyen Nguyen
doaj   +1 more source