71 citations · 284 across the 9 of their papers we have counts for
9 papers
Relative entropy as a measure of inhomogeneity in general relativity
Nikolas Akerblom, Gunther Cornelissen
We introduce the notion of relative volume entropy for two spacetimes with preferred compact spacelike foliations. This is accomplished by applying the notion of Kullback-Leibler d…
A Compact Codimension Two Braneworld with Precisely One Brane
Nikolas Akerblom, Gunther Cornelissen
Building on earlier work on football shaped extra dimensions, we construct a compact codimension two braneworld with precisely one brane. The two extra dimensions topologically rep…
Nonrelativistic Chern-Simons Vortices on the Torus
Nikolas Akerblom, Gunther Cornelissen, Gerben Stavenga +1
A classification of all periodic self-dual static vortex solutions of the Jackiw-Pi model is given. Physically acceptable solutions of the Liouville equation are related to a class…
Marginal Deformations and 3-Algebra Structures
Nikolas Akerblom, Christian Saemann, Martin Wolf
We study marginal deformations of superconformal Chern-Simons matter theories that are based on 3-algebras. For this, we introduce the notion of an associated 3-product, which capt…
D-brane Instantons in 4D Supersymmetric String Vacua
Nikolas Akerblom, Ralph Blumenhagen, Dieter Lust +1
We review some aspects of D-instantons in intersecting D-brane models. In particular, we present applications of the recently proposed instanton calculus to computations of charged…
Instantons and Holomorphic Couplings in Intersecting D-brane Models
Nikolas Akerblom, Ralph Blumenhagen, Dieter Lust +1
We clarify certain aspects and discuss extensions of the recently introduced string D-instanton calculus (hep-th/0609191). The one-loop determinants are related to one-loop open st…