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12 papers · 2 filters
Quenches and lattice simulators for particle creation
Francesco Caravelli, Fotini Markopoulou, Arnau Riera +1
In this paper we propose a framework for simulating thermal particle production in condensed matter systems. The procedure we describe can be realized by means of a quantum quench…
The Bondi-Sachs metric at the vertex of a null cone: axially symmetric vacuum solutions
Thomas Mädler, Ewald Müller
In the Bondi-Sachs formulation of General Relativity space-time is foliated via a family of null cones. If these null cones are defined such that their vertices are traced by a reg…
Geometric asymptotics for spin foam lattice gauge gravity on arbitrary triangulations
Frank Hellmann, Wojciech Kaminski
We study the behavior of holonomy spin foam partition functions, a form of lattice gauge gravity, on generic 4d-triangulations using micro local analysis. To do so we adapt tools f…
Third post-Newtonian spin-orbit effect in the gravitational radiation flux of compact binaries
Luc Blanchet, Alessandra Buonanno, Guillaume Faye
Gravitational waves contain tail effects that are due to the backscattering of linear waves in the curved space-time geometry around the source. The knowledge as well as the accura…
Multihorizon regular black holes
Stefano Ansoldi, Lorenzo Sindoni
We discuss a general procedure to generate a class of (everywhere regular) solutions of Einstein equations that can have an (a-priori fixed) arbitrary number of horizons. We then r…
Experimental tests of pseudo-complex General Relativity
Thomas Schönenbach, Gunther Caspar, Peter O. Hess +4
Based on previous publications exploring pseudo-complex General Relativity (pc-GR) we present a selection of observable consequences of pc-GR and possible ways to experimentally ac…