Quasinormal modes of massive charged flavor branes (2009)
Erdmenger, Johanna, Greubel, Constantin, Kaminski, Matthias, Kerner, Patrick, Landsteiner, Karl, Pena-Benitez, Francisco
We present an analysis and classification of vector and scalar fluctuations in a D3/D7 brane setup at finite termperature and baryon density. The system is dual to an N=2 supersymmetric Yang-Mills...
Adding Flavor to AdS4/CFT3 (2009)
Ammon, Martin, Erdmenger, Johanna, Meyer, Rene, O'Bannon, Andy, Wrase, Timm
Aharony, Bergman, Jafferis, and Maldacena have proposed that the low-energy description of multiple M2-branes at a C4/Zk singularity is a (2+1)-dimensional N=6 supersymmetric U(Nc) x U(Nc)...
Superconductivity from gauge/gravity duality with flavor (2009)
Ammon, Martin, Erdmenger, Johanna, Kaminski, Matthias, Kerner, Patrick
We consider thermal strongly-coupled View the MathML source SYM theory with fundamental matter at finite isospin chemical potential. Using gauge/gravity duality, i.e. a probe of two flavor D7-branes...
Flavor Superconductivity from Gauge/Gravity Duality (2009)
Ammon, Martin, Erdmenger, Johanna, Kaminski, Matthias, Kerner, Patrick
We give a detailed account and extensions of a holographic flavor superconductivity model which we have proposed recently. The model has an explicit field theory realization as strongly coupled N=2...
QGP thermodynamics and meson spectroscopy with AdS/CFT (2009)
Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix
In this talk we present applications of the AdS/CFT correspondence to strongly coupled systems at finite temperature and particle density. The model we investigate contains adjoint matter described...
Superconductivity from gauge/gravity duality with flavor (2008)
Ammon, Martin, Erdmenger, Johanna, Kaminski, Matthias, Kerner, Patrick
We consider thermal strongly-coupled N=2 SYM theory with fundamental matter at finite isospin chemical potential. Using gauge/gravity duality, i.e. a probe of two flavor D7-branes embedded in the AdS...
Fluid dynamics of R-charged black holes (2008)
Erdmenger, Johanna, Haack, Michael, Kaminski, Matthias, Yarom, Amos
We construct electrically charged AdS_5 black hole solutions whose charge, mass and boost-parameters vary slowly with the space-time coordinates. From the perspective of the dual theory, these are...
Quarkonium transport in thermal AdS/CFT (2008)
Dusling, Kevin, Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix, Teaney, Derek, Young, Clint
We consider a heavy meson moving slowly through high temperature non-abelian plasmas. Using a simple dipole effective Lagrangian, we calculate the in-medium mass shift and the drag coefficient of the...
Finite baryon and isospin chemical potential in AdS/CFT with flavor (2008)
Erdmenger, Johanna, Kaminski, Matthias, Kerner, Patrick, Rust, Felix
We investigate the thermodynamics of a thermal field theory in presence of both a baryon and an isospin chemical potential. For this we consider a probe of several D7-branes embedded in the...
Fayet-Iliopoulos Terms in AdS/CFT with Flavour (2008)
Ammon, Martin, Erdmenger, Johanna, Höhne, Stephan, Lust, Dieter, Meyer, Rene
We construct the gravity dual of a field theory with flavour in which there are Fayet-Iliopoulos (FI) terms present. For this purpose we turn on a constant Kalb-Ramond B field in four internal space...
Holographic vector mesons from spectral functions at finite baryon or isospin density (2008)
Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix
We consider gauge/gravity duality with flavor for the finite-temperature field theory dual of the AdS-Schwarzschild black hole background with embedded D7-brane probes. In particular, we investigate...
Mesons in Gauge/Gravity Duals - A Review (2008)
Erdmenger, Johanna, Evans, Nick, Kirsch, Ingo, Threlfall, Ed
We review recent progress in studying mesons within gauge/gravity duality, in the context of adding flavour degrees of freedom to generalizations of the AdS/CFT correspondence. Our main focus is on...
Finite baryon and isospin chemical potential in AdS/CFT with flavor (2008)
Erdmenger, Johanna, Kaminski, Matthias, Kerner, Patrick, Rust, Felix
We investigate the thermodynamics of a thermal field theory in presence of both a baryon and an isospin chemical potential. For this we consider a probe of several D7-branes embedded in the...
Quarkonium transport in thermal AdS/CFT (2008)
Dusling, Kevin, Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix, Teaney, Derek, Young, Clint
We consider a heavy meson moving slowly through high temperature non-abelian plasmas. Using a simple dipole effective Lagrangian, we calculate the in-medium mass shift and the drag coefficient of the...
Fayet-Iliopoulos Terms in AdS/CFT with Flavour (2008)
Ammon, Martin, Erdmenger, Johanna, Höhne, Stephan, Lust, Dieter, Meyer, Rene
We construct the gravity dual of a field theory with flavour in which there are Fayet-Iliopoulos (FI) terms present. For this purpose we turn on a constant Kalb-Ramond B field in four internal space...
Mesons in Gauge/Gravity Duals - A Review (2007)
Erdmenger, Johanna, Evans, Nick, Kirsch, Ingo, Threlfall, Ed
We review recent progress in studying mesons within gauge/gravity duality, in the context of adding flavour degrees of freedom to generalizations of the AdS/CFT correspondence. Our main focus is on...
Conformally Covariant Differential Operators: Symmetric Tensor Fields (2007)
Johanna Erdmenger, Hugh Osborn
We extend previous work on conformally covariant differential operators to consider the case of second order operators acting on symmetric traceless tensor fields. The corresponding flat space Green...
Holographic vector mesons from spectral functions at finite baryon or isospin density (2007)
Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix
We consider gauge/gravity duality with flavor for the finite-temperature field theory dual of the AdS-Schwarzschild black hole background with embedded D7-brane probes. In particular, we investigate...
AdS/CFT with Flavour in Electric and Magnetic Kalb-Ramond Fields (2007)
Erdmenger, Johanna, Meyer, Rene, Shock, Jonathan P.
We investigate gauge/gravity duals with flavour for which pure-gauge Kalb-Ramond B fields are turned on in the background, into which a D7 brane probe is embedded. First we consider the case of a...
Holographic heavy-light mesons from non-Abelian DBI (2007)
Erdmenger, Johanna, Ghoroku, Kazuo, Kirsch, Ingo
In the context of gauge/gravity duals with flavor, we examine heavy-light mesons which involve a heavy and a light quark. For this purpose we embed two D7 brane probes at different positions into the...
Spacetime Emergence in the Robertson-Walker Universe from a Matrix model (2007)
Erdmenger, Johanna, Meyer, Rene, Park, Jeong-Hyuck
Using a novel, string theory-inspired formalism based on a Hamiltonian constraint, we obtain a conformal mechanical system for the spatially flat four-dimensional Robertson-Walker Universe. Depending...
Isospin diffusion in thermal AdS/CFT with flavor (2007)
Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix
We study the gauge/gravity dual of a finite temperature field theory at finite isospin chemical potential by considering a probe of two coincident D7-branes embedded in the AdS-Schwarzschild black...
Adding D7-branes to the Polchinski-Strassler gravity background (2007)
Apreda, Riccardo, Erdmenger, Johanna, Lust, Dieter, Sieg, Christoph
We motivate and summarize our analysis of hep-th/0610276 in which we consider D7-brane probe embeddings in the Polchinski-Strassler background with N=2 supersymmetry. The corresponding dual gauge...
Heavy-Light Mesons from the AdS/CFT Correspondence (2007)
Erdmenger, Johanna, Evans, Nick, Grosse, Johannes
We propose a holographic description of heavy-light mesons, i.e. of mesons containing a light and a heavy quark. In the semi-classical string limit, we look at the dynamics of strings tied between...
Adding flavour to the Polchinski-Strassler background (2007)
Apreda, Riccardo, Erdmenger, Johanna, Lust, Dieter, Sieg, Christoph
As an extension of holography with flavour, we analyze in detail the embedding of a D7-brane probe into the Polchinski-Strassler gravity background, in which the breaking of conformal symmetry is...
Spacetime Emergence in the Robertson-Walker Universe from a Matrix model (2007)
Erdmenger, Johanna, Meyer, Rene, Park, Jeong-Hyuck
Using a novel, string theory-inspired formalism based on a Hamiltonian constraint, we obtain a conformal mechanical system for the spatially flat four-dimensional Robertson-Walker Universe. Depending...
Adding D7-branes to the Polchinski-Strassler gravity background (2007)
Apreda, Riccardo, Erdmenger, Johanna, Lust, Dieter, Sieg, Christoph
We motivate and summarize our analysis of hep-th/0610276 in which we consider D7-brane probe embeddings in the Polchinski-Strassler background with N=2 supersymmetry. The corresponding dual gauge...
Isospin diffusion in thermal AdS/CFT with flavor (2007)
Erdmenger, Johanna, Kaminski, Matthias, Rust, Felix
We study the gauge/gravity dual of a finite temperature field theory at finite isospin chemical potential by considering a probe of two coincident D7-branes embedded in the AdS-Schwarzschild black...
Holographic heavy-light mesons from non-Abelian DBI (2007)
Erdmenger, Johanna, Ghoroku, Kazuo, Kirsch, Ingo
In the context of gauge/gravity duals with flavor, we examine heavy-light mesons which involve a heavy and a light quark. For this purpose we embed two D7 brane probes at different positions into the...
AdS/CFT with Flavour in Electric and Magnetic Kalb-Ramond Fields (2007)
Erdmenger, Johanna, Meyer, Rene, Shock, Jonathan P.
We investigate gauge/gravity duals with flavour for which pure-gauge Kalb-Ramond B fields are turned on in the background, into which a D7 brane probe is embedded. First we consider the case of a...
Adding flavour to the Polchinski-Strassler background (2006)
Apreda, Riccardo, Erdmenger, Johanna, Lust, Dieter, Sieg, Christoph
As an extension of holography with flavour, we analyze in detail the embedding of a D7-brane probe into the Polchinski-Strassler gravity background, in which the breaking of conformal symmetry is...
Heavy-Light Mesons from the AdS/CFT Correspondence (2006)
Erdmenger, Johanna, Evans, Nick, Grosse, Johannes
We propose a holographic description of heavy-light mesons, i.e. of mesons containing a light and a heavy quark. In the semi-classical string limit, we look at the dynamics of strings tied between...
Scalar effective potential for D7 brane probes which break chiral symmetry (2006)
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick
We consider D7 brane probes embedded in deformed AdS5 × S5 supergravity backgrounds which are non-supersymmetric in the interior. In the context of the generalised AdS/CFT correspondence, these...
Matrix models for D-particle dynamics and the string/black hole transition (2006)
Erdmenger, Johanna, Park, Jeong-Hyuck, Sochichiu, Corneliu
For a generic two-dimensional 0A string background, we map the Dirac-Born-Infeld action to a matrix model. This is achieved using a canonical transformation. The action describes D0-branes in this...
Instantons on D7 brane probes and AdS/CFT with flavour (2006)
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick, Grosse, Johannes, Guralnik, Zachary
Recent work on adding flavour to the generalized AdS/CFT correspondence is reviewed. In particular, we consider instanton configurations on two coincident D7 brane probes. These are matched to the...
Scalar effective potential for D7 brane probes which break chiral symmetry (2006)
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick
We consider D7 brane probes embedded in deformed AdS5 x S5 supergravity backgrounds which are non-supersymmetric in the interior. In the context of the generalised AdS/CFT correspondence, these...
Matrix models for D-particle dynamics and the string/black hole transition (2006)
Erdmenger, Johanna, Park, Jeong-Hyuck, Sochichiu, Corneliu
For a generic two-dimensional 0A string background, we map the Dirac-Born-Infeld action to a matrix model. This is achieved using a canonical transformation. The action describes D0-branes in this...
Scalar effective potential for D7 brane probes which break chiral symmetry (2005)
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick
We consider D7 brane probes embedded in deformed AdS5 x S5 supergravity backgrounds which are non-supersymmetric in the interior. In the context of the generalised AdS/CFT correspondence, these...
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick, Guralnik, Zachary
We use anti–de Sitter/conformal field theory duality to study the thermodynamics of a strongly coupled [script N]=2 supersymmetric large Nc SU(Nc) gauge theory with Nf=2 fundamental...
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick, Guralnik, Zachary
We use AdS/CFT duality to study the thermodynamics of a strongly coupled N=2 supersymmetric large Nc SU(Nc) gauge theory with Nf =2 fundamental hypermultiplets. At finite temperature T and isospin...
Space-time dependent couplings in N=1 SUSY gauge theories: Anomalies and Central Functions (2005)
Babington, James, Erdmenger, Johanna
We consider N=1 supersymmetric gauge theories in which the couplings are allowed to be space-time dependent functions. Both the gauge and the superpotential couplings become chiral superfields. As...
Apreda, Riccardo, Erdmenger, Johanna, Evans, Nick, Guralnik, Zachary
We use AdS/CFT duality to study the thermodynamics of a strongly coupled N=2 supersymmetric large Nc SU(Nc) gauge theory with Nf =2 fundamental hypermultiplets. At finite temperature T and isospin...
Mesons in gauge/gravity dual with large number of fundamental fields (2004)
Erdmenger, Johanna, Kirsch, Ingo
In view of extending gauge/gravity dualities with flavour beyond the probe approximation, we establish the gravity dual description of mesons for a three-dimensional super Yang-Mills theory with...
A classification of local Weyl invariants in D=8 (2004)
Boulanger, Nicolas, Erdmenger, Johanna
Following a purely algebraic procedure, we provide an exhaustive classification of local Weyl-invariant scalar densities in dimension D=8.
A World-Volume Perspective on the Recombination of Intersecting Branes (2003)
Erdmenger, Johanna, Guralnik, Zachary, Helling, Robert, Kirsch, Ingo
We study brane recombination for supersymmetric configurations of intersecting branes in terms of the world-volume field theory. This field theory contains an impurity, corresponding to the degrees...
Generalizations of the AdS/CFT correspondence / (2003)
Berlin, Humboldt-University, Habil.-Schr., 2003.
Intersecting Branes, Defect Conformal Field Theories and Tensionless Strings (2002)
Constable, Neil R., Erdmenger, Johanna, Guralnik, Zachary, Kirsch, Ingo
The defect conformal field theory describing intersecting D3-branes at a C^2/Z_k orbifold is used to (de)construct the theory of intersecting M5-branes, as well as M5-branes wrapping the holomorphic...
Intersecting D3-branes and Holography (2002)
Constable, Neil R., Erdmenger, Johanna, Guralnik, Zachary, Kirsch, Ingo
We study a defect conformal field theory describing D3-branes intersecting over two space-time dimensions. This theory admits an exact Lagrangian description which includes both two- and...
Four-Dimensional Superconformal Theories with Interacting Boundaries or Defects (2002)
Erdmenger, Johanna, Guralnik, Zachary, Kirsch, Ingo
We study four-dimensional superconformal field theories coupled to three-dimensional superconformal boundary or defect degrees of freedom. Starting with bulk N=2, d=4 theories, we construct abelian...
A Field-theoretical Interpretation of the Holographic Renormalization Group (2001)
A quantum-field theoretical interpretation is given to the holographic RG equation by relating it to a field-theoretical local RG equation which determines how Weyl invariance is broken in a...
Dual expansions of N=4 super Yang-Mills theory via IIB superstring theory (2000)
Chalmers, Gordon, Erdmenger, Johanna
We examine the dual correspondence between holographic IIB superstring theory and N=4 super Yang-Mills theory at finite values of the coupling constants. In particular we analyze a field theory...
Gravitational Axial Anomaly for Four Dimensional Conformal Field Theories (1999)
We construct the three point function involving an axial vector current and two energy-momentum tensors for four dimensional conformal field theories. Conformal symmetry determines the form of this...
Superconformal Ward Identities for Green Functions with Multiple Supercurrent Insertions (1998)
Erdmenger, Johanna, Rupp, Christian
Superconformal Ward identities for N=1 supersymmetric quantum field theories in four dimensions are convenienty obtained in the superfield formalism by combining diffeomorphisms and Weyl...
Geometrical Superconformal Anomalies (1998)
Erdmenger, Johanna, Rupp, Christian
We determine the structure of geometrical superconformal anomalies for N=1 supersymmetric quantum field theories on curved superspace to all orders in h bar. For the massless Wess-Zumino model we...
Erdmenger, Johanna, Rupp, Christian, Sibold, Klaus
We investigate the superconformal transformation properties of Green functions with one or more insertions of the supercurrent in N=1 supersymmetric quantum field theories. These Green functions are...
Superconductivity from gauge/gravity duality with flavor
Ammon, Martin, Erdmenger, Johanna, Kaminski, Matthias, Kerner, Patrick
We consider thermal strongly-coupled N=2 SYM theory with fundamental matter at finite isospin chemical potential. Using gauge/gravity duality, i.e. a probe of two flavor D7-branes embedded in the AdS...