3 papers
quant-ph2025
Reconstructing the unitary part of a noisy quantum channel
Adrian Romer, Daniel M. Reich, Christiane P. Koch
We consider the problem of reconstructing the unitary describing the evolution of a quantum system, or quantum channel, from a set of input and output states. For ideal, fully cohe…
quant-ph2024
Rotational excitation in sympathetic cooling of diatomic molecular ions by laser-cooled atomic ions
J. Martin Berglund, Michael Drewsen, Christiane P. Koch
Sympathetic cooling of molecular ions through the Coulomb interaction with laser-cooled atomic ions is an efficient tool to prepare translationally cold molecules without, ideally,…
physics.comp-ph2024
Numerical evaluation of orientation averages and its application to molecular physics
Alexander Blech, Raoul M. M. Ebeling, Marec Heger +2
In molecular physics, it is often necessary to average over the orientation of molecules when calculating observables, in particular when modelling experiments in the liquid or gas…