204 citations · 1.3k across the 31 of their papers we have counts for
31 papers · 1 filter
Bulkcone Singularities and Complex Geodesics
Ignacio J. Araya, Chantelle Esper, Yueke Jia +2
Thermal correlators in holographic CFTs on a sphere exhibit bulk-cone singularities at points connected by null geodesics in the bulk. The operator product expansion analysis of th…
Bulk Phase Shift and Singularity
Yueke Jia, Manuela Kulaxizi
High-energy scattering of a light particle off a black hole at fixed impact parameter is described by an eikonal phase, which encodes the resulting time delay and angular deflectio…
CFT correlators, -algebras and Generalized Catalan Numbers
Robin Karlsson, Manuela Kulaxizi, Gim Seng Ng +2
In two spacetime dimensions the Virasoro heavy-heavy-light-light (HHLL) vacuum block in a certain limit is governed by the Catalan numbers. The equation for their generating functi…
Stress Tensor Sector of Conformal Correlators
Robin Karlsson, Manuela Kulaxizi, Andrei Parnachev +1
An important part of a CFT four-point function, the stress tensor sector, comprises the exchanges of the stress tensor and its composites. The OPE coefficients of these multi-stres…
Leading Multi-Stress Tensors and Conformal Bootstrap
Robin Karlsson, Manuela Kulaxizi, Andrei Parnachev +1
Near lightcone correlators are dominated by operators with the lowest twist. We consider the contributions of such leading lowest twist multi-stress tensor operators to a heavy-hea…
Subleading Eikonal, AdS/CFT and Double Stress Tensors
Manuela Kulaxizi, Gim Seng Ng, Andrei Parnachev
The eikonal phase which determines the Regge limit of the gravitational scattering amplitude of a light particle off a heavy one in Minkowski spacetimes admits an expansion in the…
Black Holes and Conformal Regge Bootstrap
Robin Karlsson, Manuela Kulaxizi, Andrei Parnachev +1
Highly energetic particles traveling in the background of an asymptotically AdS black hole experience a Shapiro time delay and an angle deflection. These quantities are related to…
Black Holes, Heavy States, Phase Shift and Anomalous Dimensions
Manuela Kulaxizi, Gim Seng Ng, Andrei Parnachev
We compute the phase shift of a highly energetic particle traveling in the background of an asymptotically AdS black hole. In the dual CFT, the phase shift is related to a four poi…
General Backgrounds for higher spin massive particles
Ignacio Cortese, Manuela Kulaxizi
We consider the propagation of totally symmetric bosonic fields on generic background spacetimes. The mutual compatibility of the dynamical equations and constraints severely const…
Bulk Phase Shift, CFT Regge Limit and Einstein Gravity
Manuela Kulaxizi, Andrei Parnachev, Alexander Zhiboedov
The bulk phase shift, related to a CFT four-point function, describes two-to-two scattering at fixed impact parameter in the dual AdS spacetime. We describe its properties for a ge…
On Complexity of Holographic Flavors
Francisco Jose Garcia Abad, Manuela Kulaxizi, Andrei Parnachev
Quantum complexity of a thermofield double state in a strongly coupled quantum field theory has been argued to be holographically related to the action evaluated on the Wheeler-DeW…
Conformal Field Theories and Deep Inelastic Scattering
Zohar Komargodski, Manuela Kulaxizi, Andrei Parnachev +1
We consider Deep Inelastic Scattering (DIS) thought experiments in unitary Conformal Field Theories (CFTs). We explore the implications of the standard dispersion relations for the…
Fermion Dipole Moment and Holography
Manuela Kulaxizi, Rakibur Rahman
In the background of a charged AdS black hole, we consider a Dirac particle endowed with an arbitrary magnetic dipole moment. For non-zero charge and dipole coupling of the bulk fe…
Higher-Spin Modes in a Domain-Wall Universe
Manuela Kulaxizi, Rakibur Rahman
We find a consistent set of equations of motion and constraints for massive higher-spin fluctuations in a gravitational background, required of certain characteristic properties bu…
Conformal Blocks and Negativity at Large Central Charge
Manuela Kulaxizi, Andrei Parnachev, Giuseppe Policastro
We consider entanglement negativity for two disjoint intervals in 1+1 dimensional CFT in the limit of large central charge. As the two intervals get close, the leading behavior of…
Holographic Constraints on a Vector Boson
Manuela Kulaxizi, Rakibur Rahman
We show that holography poses non-trivial restrictions on various couplings of an interacting field. For a vector boson in the AdS Reissner-Nordstrom background, the dual boundary…
On Holographic Entanglement Entropy of Charged Matter
Manuela Kulaxizi, Andrei Parnachev, Koenraad Schalm
We study holographic entanglement entropy in the background of charged dilatonic black holes which can be viewed as holographic duals of certain finite density states of N=4 super…
Holographic Entanglement Entropy in Lovelock Gravities
Jan de Boer, Manuela Kulaxizi, Andrei Parnachev
We study entanglement entropies of simply connected surfaces in field theories dual to Lovelock gravities. We consider Gauss-Bonnet and cubic Lovelock gravities in detail. In the c…
Energy Flux Positivity and Unitarity in CFTs
Manuela Kulaxizi, Andrei Parnachev
We show that in most conformal field theories the condition of the energy flux positivity, proposed by Hofman and Maldacena, is equivalent to the absence of ghosts. At finite tempe…
Supersymmetry Constraints in Holographic Gravities
Manuela Kulaxizi, Andrei Parnachev
Supersymmetric higher derivative gravities define superconformal field theories via the AdS/CFT correspondence. From the boundary theory viewpoint, supersymmetry implies a relation…
Holographic Lovelock Gravities and Black Holes
Jan de Boer, Manuela Kulaxizi, Andrei Parnachev
We study holographic implications of Lovelock gravities in AdS spacetimes. For a generic Lovelock gravity in arbitrary spacetime dimensions we formulate the existence condition for…
AdS_7/CFT_6, Gauss-Bonnet Gravity, and Viscosity Bound
Jan de Boer, Manuela Kulaxizi, Andrei Parnachev
We study the relation between the causality and the positivity of energy bounds in Gauss-Bonnet gravity in AdS_7 background and find a precise agreement. Requiring the group veloci…
Notes on Properties of Holographic Matter
Andreas Karch, Manuela Kulaxizi, Andrei Parnachev
Probe branes with finite worldvolume electric flux in the background created by a stack of Dp branes describe holographically strongly interacting fundamental matter at finite dens…
Holographic Responses of Fermion Matter
Manuela Kulaxizi, Andrei Parnachev
We consider the brane system which serves as ultraviolet completion of the Nambu-Jona-Lasinio model, where the only degrees of freedom carrying baryon charge are f…