3 papers
quant-ph2025
Classical and mixed classical-quantum systems from van Hove's unitary representation of contact transformations
Marcel Reginatto, Andrés Darío Bermúdez Manjarres, Sebastian Ulbricht
Descriptions of classical mechanics in Hilbert space go back to the work of Koopman and von Neumann in the 1930s. Decades later, van Hove derived a unitary representation of the gr…
gr-qc2024
A gravitational metrological triangle
Claus Lammerzahl, Sebastian Ulbricht
Motivated by the similarity of the mathematical structure of Einstein's General Relativity in its weak field limit and of Maxwell's theory of electrodynamics it is shown that there…
gr-qc2023
Using gravitational light deflection in optical cavities for laser frequency stabilization
Sebastian Ulbricht, Johannes Dickmann, Andrey Surzhykov
We theoretically investigate the propagation of light in the presence of a homogeneous gravitational field. To model this, we derive the solutions of the wave equation in Rindler s…