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23 papers · 2 filters
Loop Calculations for the Non-Commutative U(1) Gauge Field Model with Oscillator Term
Daniel N. Blaschke, Harald Grosse, Erwin Kronberger +2
Motivated by the success of the non-commutative scalar Grosse-Wulkenhaar model, a non-commutative U(1) gauge field theory including an oscillator-like term in the action has been p…
On Non-Commutative U*(1) Gauge Models and Renormalizability
Daniel N. Blaschke, Arnold Rofner, Rene I. P. Sedmik +1
Based on our recent findings regarding (non-)renormalizability of non-commutative U*(1) gauge theories [arxiv:0908.0467, arxiv:0908.1743] we present the construction of a new type…
AdS_3/LCFT_2 - Correlators in New Massive Gravity
Daniel Grumiller, Olaf Hohm
We calculate 2-point correlators for New Massive Gravity at the chiral point and find that they behave precisely as those of a logarithmic conformal field theory, which is characte…
AdS_3/LCFT_2 - Correlators in Cosmological Topologically Massive Gravity
Daniel Grumiller, Ivo Sachs
For cosmological topologically massive gravity at the chiral point we calculate momentum space 2- and 3-point correlators of operators in the postulated dual CFT on the cylinder. T…
A note on strings in deformed AdS_4 x CP3: giant magnon and single spike solutions
M. Schimpf, R. C. Rashkov
In this paper we study the solitonic string solutions of magnon and single spike type in the beta-deformed AdS_4 x CP3 background. We find the dispersion relations which are suppos…
Holographic counterterms from local supersymmetry without boundary conditions
Daniel Grumiller, Peter van Nieuwenhuizen
We show in some lower-dimensional supergravity models that the holographic counterterms which are needed in the AdS/CFT correspondence to make the theory finite, coincide with the…