38 citations · 229 across the 22 of their papers we have counts for
22 papers
The Wave Functional of the Vacuum in a Resonator
Alexander Friedrich, Daniela Moll, Matthias Freyberger +2
We show that despite the fundamentally different situations, the wave functional of the vacuum in a resonator is identical to that of free space. The infinite product of Gaussian g…
Qubit-based momentum measurement of a particle
Bernd Konrad, Fabio Di Pumpo, Matthias Freyberger
An early approach to include pointers representing measurement devices into quantum mechanics was given by von Neumann. Based on this idea, we model such pointers by qubits and cou…
Pointer-based model for state reduction in momentum space
Fabio Di Pumpo, Matthias Freyberger
We revisit the pointer-based measurement concept of von Neumann which allows us to model a quantum counterpart of the classical time-of-flight (ToF) momentum. Our approach is based…
Steady-state entanglement enhanced by a dissipative ancilla
Joachim Fischbach, Matthias Freyberger
We investigate how to enhance entanglement in the steady state of interacting two-level systems. The steady state is reached by spontaneous decay of the individual systems. When we…
Entropic uncertainty bound for open pointer-based simultaneous measurements of conjugate observables
Raoul Heese, Matthias Freyberger
We discuss the information entropy for a general open pointer-based simultaneous measurement and show how it is bound from below. This entropic uncertainty bound is a direct conseq…
Pointer-based simultaneous measurements of conjugate observables in a thermal environment
Raoul Heese, Matthias Freyberger
We combine traditional pointer-based simultaneous measurements of conjugate observables with the concept of quantum Brownian motion of multipartite systems to phenomenologically mo…