68 citations · 367 across the 25 of their papers we have counts for
25 papers
Superconformal indices and black hole saddles
Maciej Kolanowski, Donald Marolf, Zi-Yue Wang +1
The AdS/CFT correspondence implies that the superconformal index in SU(N) supersymmetric Yang-Mills theory can be computed using the dual bulk theor…
Axions Create Singularities on Extremal Horizons
Gary T. Horowitz, Maciej Kolanowski, Grant N. Remmen +1
We show that axions cause extremal black holes to have singular horizons. This is true for almost all values of the axion mass and coupling provided the black hole is rotating and…
How to tame your (black hole) saddles: Lessons from the Lorentzian Gravitational Path Integral
Maciej Kolanowski, Donald Marolf
We resolve a puzzle associated with the spherically-symmetric sector of the AdS Einstein-Maxwell partition function with inverse temperature . Since charge is quantized, the…
Frozen Firewall: Generic Singularity Formation on an Extremal Horizon
Gary T. Horowitz, Maciej Kolanowski, Jorge E. Santos
It is known that linearized perturbations of extremal black holes result in growing curvature on the horizon. However, nonlinear perturbations typically do not evolve to extremal b…
Extended JT supergravity and random matrix models: The power of the string equation
Clifford V. Johnson, Maciej Kolanowski
A number of supersymmetric Jackiw-Teitelboim (JT) gravity theories are known to be described (in the Euclidean path integral formulation) by double-scaled random matrix models. Suc…
Looking at extremal black holes from very far away
Maciej Kolanowski, Donald Marolf, Ilija Rakic +2
Near-extremal black holes are subject to large quantum effects, which modify their low-temperature thermodynamic behavior. Hitherto, these quantum effects were analyzed by separati…
Spin-Refined Partition Functions and Black Holes
David Grabovsky, Maciej Kolanowski
We investigate spin-refined partition functions in AdS/CFT using Euclidean gravitational path integrals. We construct phase diagrams for in…
Null states and time evolution in a toy model of black hole dynamics
Xi Dong, Maciej Kolanowski, Xiaoyi Liu +2
Spacetime wormholes can provide non-perturbative contributions to the gravitational path integral that make the actual number of states in a gravitational system much smaller…
Sudden breakdown of effective field theory near cool Kerr-Newman black holes
Gary T. Horowitz, Maciej Kolanowski, Grant N. Remmen +1
It was recently shown that (near-)extremal Kerr black holes are sensitive probes of small higher-derivative corrections to general relativity. In particular, these corrections prod…
Singularities in 2D and 3D quantum black holes
Maciej Kolanowski, Marija Tomašević
We study black holes in two and three dimensions that have spacelike curvature singularities behind horizons. The 2D solutions are obtained by dimensionally reducing certain 3D bla…
Extremal Kerr black holes as amplifiers of new physics
Gary T. Horowitz, Maciej Kolanowski, Grant N. Remmen +1
We show that extremal Kerr black holes are sensitive probes of new physics. Stringy or quantum corrections to general relativity are expected to generate higher-curvature terms in…
A deformed IR: a new IR fixed point for four-dimensional holographic theories
Gary T. Horowitz, Maciej Kolanowski, Jorge E. Santos
In holography, the IR behavior of a quantum system at nonzero density is described by the near horizon geometry of an extremal charged black hole. It is commonly believed that for…
Almost all extremal black holes in AdS are singular
Gary T. Horowitz, Maciej Kolanowski, Jorge E. Santos
We investigate the geometry near the horizon of a generic, four-dimensional extremal black hole. When the cosmological constant is negative, we show that (in almost all cases) tida…
Symmetries of the asymptotically de Sitter spacetimes
Wojciech Kamiński, Maciej Kolanowski, Jerzy Lewandowski
We start a systematic investigation of possible isometries of the asymptotically de Sitter solutions to Einstein equations. We reformulate the Killing equation as conformal equatio…
Charges and Fluxes on (Perturbed) Non-expanding Horizons
Abhay Ashtekar, Neev Khera, Maciej Kolanowski +1
In a companion paper we showed that the symmetry group of non-expanding horizons (NEHs) is a 1-dimensional extension of the Bondi-Metzner-Sachs group …
Non-Expanding horizons: Multipoles and the Symmetry Group
Abhay Ashtekar, Neev Khera, Maciej Kolanowski +1
It is well-known that blackhole and cosmological horizons in equilibrium situations are well-modeled by non-expanding horizons (NEHs). In the first part of the paper we introduce m…
Towards the black hole uniqueness: transverse deformations of the extremal Reissner-Nordström-(A)dS horizon
Maciej Kolanowski
We study all transverse deformations of the extremal Reissner-Nordström-(A)dS horizon in the Einstein-Maxwell theory. No symmetry assumptions are needed. It is shown that for the g…
Hamiltonian charges in the asymptotically de Sitter spacetimes
Maciej Kolanowski, Jerzy Lewandowski
We generalize a notion of 'conserved' charges given by Wald and Zoupas to the asymptotically de Sitter spacetimes. Surprisingly, our construction is less ambiguous than the one enc…
Energy of gravitational radiation in the de Sitter universe at the scri and at a horizon
Maciej Kolanowski, Jerzy Lewandowski
In this note we investigate outcomes of a symplectic formula for the gravitational waves charges in the general relativity linearized around the de Sitter spacetime. We derive thei…
Casimir effect in conformally flat spacetimes
Bartosz Markowicz, Kacper Dębski, Maciej Kolanowski +2
We discuss several approaches to determine the Casimir force in inertial frames of reference in different dimensions. On an example of a simple model involving mirrors in Rindler s…
Dressed metric predictions revisited
Wojciech Kamiński, Maciej Kolanowski, Jerzy Lewandowski
It was recently shown that the volume operator of loop quantum cosmology (LQC) and all its positive powers are ill-defined on physical states. In this paper, we investigate how it…
Extremal horizons stationary to the second order: new constraints
Maciej Kolanowski, Jerzy Lewandowski, Adam Szereszewski
We consider non-expanding shear free (NE-SF) null surface geometries embeddable as extremal Killing horizons to the second order in Einstein vacuum spacetimes. A NE-SF null surface…
On backreaction effects in geometrical destabilisation of inflation
Oskar Grocholski, Marcin Kalinowski, Maciej Kolanowski +3
We study the geometrical instability arising in multi-field models of inflation with negatively-curved field space. We analyse how the homogeneous background evolves in presence of…
The expansion of the symmetric traceless and the antisymmetric tensor models in rank three
Dario Benedetti, Sylvain Carrozza, Razvan Gurau +1
We prove rigorously that the symmetric traceless and the antisymmetric tensor models in rank three with tetrahedral interaction admit a expansion, and that at leading order t…