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Classical world arising out of quantum physics under the restriction of coarse-grained measurements
Johannes Kofler, Caslav Brukner
Conceptually different from the decoherence program, we present a novel theoretical approach to macroscopic realism and classical physics within quantum theory. It focuses on the l…
Axially symmetric focusing as a cuspoid diffraction catastrophe: Scalar and vector cases and comparison with the theory of Mie
Johannes Kofler, Nikita Arnold
An analytical description of arbitrary strongly aberrated axially symmetric focusing is developed. This is done by matching the solution of geometrical optics with a wave pattern w…
Measuring the absolute photo detection efficiency using photon number correlations
Michael Lindenthal, Johannes Kofler
We present two methods for determining the absolute detection efficiency of photon-counting detectors directly from their singles rates under illumination from a nonclassical light…
Entanglement distribution revealed by macroscopic observations
Johannes Kofler, Caslav Brukner
What can we learn about entanglement between individual particles in macroscopic samples by observing only the collective properties of the ensembles? Using only a few experimental…