90 citations · 953 across the 58 of their papers we have counts for
59 papers
Directly computing Wigner functions for open quantum systems
Nick Huggett, Christian Käding, Mario Pitschmann +1
The Wigner function is a well-known phase space distribution function with many applications in quantum mechanics. In this article, we consider an open quantum system consisting of…
Equivalence of scalar-tensor theories and scale-dependent gravity
Philipp Neckam, Christian Käding, Benjamin Koch +4
We present a novel equivalence between scale-dependent gravity and scalar-tensor theories that have only a single scalar field with a canonical kinetic term in the Einstein frame a…
Density matrices in quantum field theory: Non-Markovianity, path integrals and master equations
Christian Käding, Mario Pitschmann
Density matrices are powerful mathematical tools for the description of closed and open quantum systems. Recently, methods for the direct computation of density matrix elements in…
Quantum and thermal pressures from light scalar fields
Hauke Fischer, Christian Käding, Mario Pitschmann
Light scalar fields play a variety of roles in modern physics, especially in cosmology and modified theories of gravity. For this reason, there is a zoo of experiments actively try…
Screened Scalar Fields in the Laboratory and the Solar System
Hauke Fischer, Christian Käding, Mario Pitschmann
The last few decades have provided abundant evidence for physics beyond the two standard models of particle physics and cosmology. As is now known, the by far largest part of our u…
Force metrology with plane parallel plates: Final design review and outlook
Hamid Haghmoradi, Hauke Fischer, Alessandro Bertolini +5
During the past few decades, abundant evidence for physics beyond the two standard models of particle physics and cosmology was found. Yet, we are tapping into the dark regarding o…