31 citations · 144 across the 18 of their papers we have counts for
3 papers · 1 filter
Probing the Big Bang with quantum fields
Abhay Ashtekar, Tommaso De Lorenzo, Marc Schneider
By carrying out a systematic investigation of linear, test quantum fields in cosmological space-times, we show that remain well-defined across the big bang as…
Quantum probing of null-singularities
Ivo Sachs, Marc Schneider, Maximilian Urban
We adapt the dual-null foliation to the functional Schrödinger representation of quantum field theory and study the behavior of quantum probes in plane-wave space-times near the nu…
Scalar lumps with a horizon
George Lavrelashvili, Jean-Luc Lehners, Marc Schneider
We study a self-interacting scalar field theory coupled to gravity and are interested in spherically symmetric solutions with a regular origin surrounded by a horizon. For a scalar…