130 citations · 377 across the 15 of their papers we have counts for
15 papers
Geometric origin of intrinsic rigidity for extremal horizons
Wojciech Kamiński, Adam Szereszewski
Our work clarifies the origin of enhanced symmetry of near horizon geometries. We relate this property to an existence of specific foliation by non-expanding horizons. The existenc…
Symmetry restriction and its application to gravity
Wojciech Kamiński, Klaus Liegener
In the Hamiltonian formulation, it is not a priori clear whether a symmetric configuration will keep its symmetry during evolution. In this paper, we give precise requirements of w…
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…
Elementary proof of symmetry of the off-diagonal Seeley-DeWitt (and related Hadamard) coefficients
Wojciech Kamiński
We will prove in an elementary way that off-diagonal Seeley-DeWitt and Hadamard coefficients are (sesqui-)symmetric for smooth manifolds of arbitrary signature.
Non-self-adjointness of the Klein-Gordon operator on a globally hyperbolic and geodesically complete manifold. An example
Wojciech Kamiński
We describe a Lorentzian manifold that is globally hyperbolic and geodesically complete, but such that the (minimally coupled) Klein-Gordon operator with the standard domain is not…