KU Leuven

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2019 · hep-thShow all

40 papers · 2 filters

hep-th2019★ 19 cited

Gauge-invariant spectral description of the $U (1)$ Higgs model from local composite operators

David Dudal, Duive Maria van Egmond, Marcelo Santos Guimaraes +4

The spectral properties of a set of local gauge-invariant composite operators are investigated in the $U (1)$ Higgs model quantized in the 't Hooft $R_{ξ}$ gauge. These operators enab…

hep-th2019★ 13 cited

Dyonic black hole degeneracies in $N = 4$ string theory from Dabholkar-Harvey degeneracies

Abhishek Chowdhury, Abhiram Kidambi, Sameer Murthy +2

The degeneracies of single-centered dyonic $\frac{1}{4}$ -BPS black holes (BH) in Type II string theory on K3 $\times T^{2}$ are known to be coefficients of certain mock Jacobi forms arisi…

hep-th2019★ 16 cited

Wrapped Branes and Punctured Horizons

Nikolay Bobev, Pieter Bomans, Fridrik Freyr Gautason

Large classes of AdS $_{p}$ supergravity backgrounds describing the IR dynamics of $p$ -branes wrapped on a Riemann surface are determined by a solution to the Liouville equation. The…

hep-th2019★ 23 cited

Inflation, Higher Spins and the Swampland

Marco Scalisi

We study the implications on inflation of an infinite tower of higher-spin states with masses falling exponentially at large field distances, as dictated by the Swampland Distance…

hep-th2019★ 25 cited

Partial-Symmetry-Breaking Phase Transitions

Masanori Hanada, Brandon Robinson

We demonstrate a novel feature of certain phase transitions in theories with large rank symmetry group that exhibit specific types of non-local interactions. A typical example of s…

hep-th2019★ 7 cited

Cosmological Decoherence from Thermal Gravitons

Ning Bao, Aidan Chatwin-Davies, Jason Pollack +1

We study the effects of gravitationally-driven decoherence on tunneling processes associated with false vacuum decays, such as the Coleman--De~Luccia instanton. We compute the ther…

hep-th2019★ 10 cited

Large- $d$ phase transitions in holographic mutual information

Sean Colin-Ellerin, Veronika E. Hubeny, Benjamin E. Niehoff +1

In the AdS/CFT correspondence, the entanglement entropy of subregions in the boundary CFT is conjectured to be dual to the area of a bulk extremal surface at leading order in $G_{N}$ …

hep-th2019★ 11 cited

Landau-Khalatnikov-Fradkin Transformations, Nielsen Identities, Their Equivalence and Implications for QCD

Tim De Meerleer, David Dudal, Silvio Paolo Sorella +2

The Landau-Khalatnikov-Fradkin transformations (LKFTs) represent an important tool for probing the gauge dependence of the correlation functions within the class of linear covarian…

hep-th2019★ 17 cited

Bulk Reconstruction Beyond the Entanglement Wedge

Ning Bao, Aidan Chatwin-Davies, Benjamin E. Niehoff +1

We study the portion of an asymptotically Anti de Sitter geometry's bulk where the metric can be reconstructed, given the areas of minimal 2-surfaces anchored to a fixed boundary s…

hep-th2019★ 33 cited

Extremal Rotating Black Holes in Einsteinian Cubic Gravity

Pablo A. Cano, David Pereñiguez

We obtain new solutions of Einsteinian cubic gravity coupled to a Maxwell field that describe the near-horizon geometry of charged and rotating black holes. We show that the AdS$_2…

hep-th2019★ 28 cited

A new N=1 AdS4 Vacuum of Maximal Supergravity

Nikolay Bobev, Thomas Fischbacher, Krzysztof Pilch

The recent comprehensive numerical study of critical points of the scalar potential of four-dimensional N=8, SO(8) gauged supergravity using Machine Learning software has led to a…

hep-th2019★ 20 cited

Supersymmetric Yang-Mills, Spherical Branes, and Precision Holography

Nikolay Bobev, Pieter Bomans, Fridrik Freyr Gautason +2

Using supersymmetric localization we compute the free energy and BPS Wilson loop vacuum expectation values for planar maximally supersymmetric Yang-Mills theory on $S^{d}$ in the str…

hep-th2019

Gribov horizon, Polyakov loop and finite temperature

Fabrizio Canfora, David Dudal, Igor Justo +3

We consider finite-temperature $S U (2)$ gauge theory in the continuum formulation. Choosing the Landau gauge, the existing gauge copies are taken into account by means of the Gribov…

hep-th2019★ 100 cited

Festina Lente: EFT Constraints from Charged Black Hole Evaporation in de Sitter

Miguel Montero, Thomas Van Riet, Victoria Venken

In the Swampland philosophy of constraining EFTs from black hole mechanics we study charged black hole evaporation in de Sitter space. We establish how the black hole mass and char…

hep-th2019★ 23 cited

On subregion action complexity in AdS $_{3}$ and in the BTZ black hole

Roberto Auzzi, Stefano Baiguera, Andrea Legramandi +3

We analytically compute subsystem action complexity for a segment in the BTZ black hole background up to the finite term, and we find that it is equal to the sum of a linearly dive…

hep-th2019★ 55 cited

Universal Spinning Black Holes and Theories of Class $R$

Nikolay Bobev, P. Marcos Crichigno

We study a supersymmetric, rotating, electrically charged black hole in AdS $_{4}$ which is a solution of four-dimensional minimal gauged supergravity. Using holography we show that…

hep-th2019★ 27 cited

A One-Loop Test of the near-AdS $_{2}$ /near-CFT $_{1}$ Correspondence

Anthony M. Charles, Finn Larsen

We analyze quantum fluctuations around black hole solutions to the Jackiw-Teitelboim model. We use harmonic analysis on Euclidean AdS $_{2}$ to show that the logarithmic corrections t…

hep-th2019★ 25 cited

On volume subregion complexity in Vaidya spacetime

Roberto Auzzi, Giuseppe Nardelli, Fidel I. Schaposnik Massolo +2

We study holographic subregion volume complexity for a line segment in the AdS $_{3}$ Vaidya geometry. On the field theory side, this gravity background corresponds to a sudden quench…

hep-th2019★ 39 cited

Janus and J-fold Solutions from Sasaki-Einstein Manifolds

Nikolay Bobev, Friðrik Freyr Gautason, Krzysztof Pilch +2

We show that for every Sasaki-Einstein manifold, $M_{5}$ , the AdS $_{5} \times M_{5}$ background of type IIB supergravity admits two universal deformations leading to supersymmetric AdS$_4…

hep-th2019★ 20 cited

The 2D Volkov-Akulov model as a $T T ˉ$ deformation

Niccolò Cribiori, Fotis Farakos, Rikard von Unge

We show that the two-dimensional $N = (2, 2)$ Volkov-Akulov action that describes the spontaneous breaking of supersymmetry is a $T T ˉ$ deformation of a free fermionic theory. Our…

hep-th2019

Extracting topological information from momentum space propagators

Fabrizio Canfora, David Dudal, Alex Giacomini +3

A new topological invariant quantity, sensitive to the analytic structure of both fermionic and bosonic propagators, is proposed. The gauge invariance of our construct is guarantee…

hep-th2019★ 4 cited

Infinitesimal Gribov copies in gauge-fixed topological Yang-Mills theories

D. Dudal, C. P. Felix, O. C. Junqueira +5

We study the Gribov problem in four-dimensional topological Yang-Mills theories following the Baulieu-Singer approach in the (anti-)self-dual Landau gauges. This is a gauge-fixed a…

hep-th2019★ 40 cited

Matter-coupled supersymmetric Kerr-Newman-AdS $_{4}$ black holes

Kiril Hristov, Stefanos Katmadas, Chiara Toldo

We present new analytic rotating AdS $_{4}$ black holes, found as solutions of 4d gauged $N = 2$ supergravity coupled to abelian vector multiplets with a symmetric scalar mani…

hep-th2019★ 106 cited

Anisotropic string tensions and inversely magnetic catalyzed deconfinement from a dynamical AdS/QCD model

Hardik Bohra, David Dudal, Ali Hajilou +1

We extend previous work on dynamical AdS/QCD models by introducing an extra ingredient under the form of a background magnetic field, this to gain insight into the influence such f…