52 citations · 274 across the 20 of their papers we have counts for
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Metric and coupling reversal in string theory
M. J. Duff, Jussi Kalkkinen
Invariance under reversing the sign of the metric G_{MN}(x) and/or the sign of the string coupling field H(x), where <H(x)> = g_s, leads to four possible Universes denoted 1,I,J,K…
Signature reversal invariance
M. J. Duff, Jussi Kalkkinen
We consider the signature reversing transformation of the metric tensor g_ab goes to -g_ab induced by the chiral transformation of the curved space gamma matrices gamma_a goes to g…
Global Spinors and Orientable Five-Branes
Jussi Kalkkinen
Fermion fields on an M-theory five-brane carry a representation of the double cover of the structure group of the normal bundle. It is shown that, on an arbitrary oriented Lorentzi…
Non-Geometric Magnetic Flux and Crossed Modules
Jussi Kalkkinen
It is shown that the BRST operator of twisted N=4 Yang-Mills theory in four dimensions is locally the same as the BRST operator of a fully decomposed non-Abelian gerbe. Using local…
Topological Quantum Field Theory on Non-Abelian Gerbes
Jussi Kalkkinen
The infinitesimal symmetries of a fully decomposed non-Abelian gerbe can be generated in terms of a nilpotent BRST operator, which is here constructed. The appearing fields find a…
Holonomies of Intersecting Branes
Jussi Kalkkinen
We discuss the geometry of string and M-theory gauge fields in Deligne cohomology. In particular, we show how requiring string structure (or loop space Spin-C structure) on the fiv…
On Conformal Field Theory and Stochastic Loewner Evolution
Roland Friedrich, Jussi Kalkkinen
We describe Stochastic Loewner Evolution on arbitrary Riemann surfaces with boundary using Conformal Field Theory methods. We propose in particular a CFT construction for a probabi…
Form-field Gauge Symmetry in M-theory
J. Kalkkinen, K. S. Stelle
We show how to cast an interacting system of M--branes into manifestly gauge-invariant form using an arrangement of higher-dimensional Dirac surfaces. Classical M--theory has a coh…
Large Gauge Transformations in M-theory
Jussi Kalkkinen, K. S. Stelle
We cast M-brane interactions including intersecting membranes and five-branes in manifestly gauge invariant form using an arrangement of higher dimensional Dirac surfaces. We show…
Holographic Renormalisation and Anomalies
Jussi Kalkkinen, Dario Martelli, Wolfgang Mueck
The Weyl anomaly in the Holographic Renormalisation Group as implemented using Hamilton-Jacobi language is studied in detail. We investigate the breakdown of the descent equations…
Holographic Renormalization Group and Fermionic Boundary Data
Jussi Kalkkinen, Dario Martelli
We discuss Holographic Renormalization Group equations in the presence of fermions and form fields in the bulk. The existence of a holographically dual quantum field theory for a g…
Decay Modes of Highly Excited String States and Kerr Black Holes
Roberto Iengo, Jussi Kalkkinen
We consider four-graviton scattering in Type II string theory on one-loop level in the large centre of mass energy M^2 limit. We extract from it an explicit integral expression for…
Holographic Renormalization Group with Fermions and Form Fields
Jussi Kalkkinen, Dario Martelli
We find the Holographic Renormalization Group equations for the holographic duals of generic gravity theories coupled to form fields and spin-1/2 fermions. Using Hamilton-Jacobi th…
Non-Abelian Gerbes from Strings on a Branched Space-Time
Jussi Kalkkinen
As superstring solitons that carry Neuveu-Schwarz charge can be described in terms of gerbes, one expects non-Abelian gerbes to appear e.g. in the exotic six-dimensional world-volu…
Gerbes and Massive Type II Configurations
Jussi Kalkkinen
We find novel bound states of NS5, D6 and D8-branes in massive Type IIA string theory. As the NS gauge transformations can change the Chern class of the RR field these configuratio…
Non-critical type 0 string theories and their field theory duals
Gabriele Ferretti, Jussi Kalkkinen, Dario Martelli
In this paper we continue the study of the non-critical type 0 string and its field theory duals. We begin by reviewing some facts and conjectures about these theories. We move on…
Notes on Supersymmetric Gauge Theories in Five and Six Dimensions
Ulf H. Danielsson, Gabriele Ferretti, Jussi Kalkkinen +1
We investigate consistency conditions for supersymmetric gauge theories in higher dimensions. First, we give a survey of Seiberg's necessary conditions for the existence of such th…
Dimensionally Reduced Yang-Mills Theories in Noncommutative Geometry
Jussi Kalkkinen
We study a class of noncommutative geometries that give rise to dimensionally reduced Yang-Mills theories. The emerging geometries describe sets of copies of an even dimensional ma…
Aspects of mass gap, confinement and N=2 structure in 4-D Yang-Mills theory
Jussi Kalkkinen, Antti J. Niemi
We introduce new variables in four dimensional SU(N) Yang-Mills theory. These variables emerge when we sum the path integral over classical solutions and represent the summation as…
Induced QCD from the Noncommutative Geometry of a Supermanifold
Jussi Kalkkinen
We study the noncommutative geometry of a two-leaf Parisi--Sourlas supermanifold in Connes' formalism using different -cycles over the Grassmann algebra valued functions on the…