243 citations · 1.4k across the 39 of their papers we have counts for
39 papers
Three-Path Quantum Cheshire Cat Observed in Neutron Interferometry
Armin Danner, Niels Geerits, Hartmut Lemmel +3
The paradoxical phenomenon of the quantum Cheshire Cat (qCC) refers to situations where different properties of a particle appear to be localised in different paths of an interfero…
Quantifying the presence of a neutron in the paths of an interferometer
Hartmut Lemmel, Niels Geerits, Armin Danner +3
It is commonly assumed that no accurate experimental information can be obtained on the path taken by a particle when quantum interference between the paths is observed. However, r…
Tests of Fundamental Quantum Mechanics and Dark Interactions with Low Energy Neutrons -- Extended Version
Stephan Sponar, Rene I. P. Sedmik, Mario Pitschmann +2
Among the known particles, the neutron takes a special position, as it provides experimental access to all four fundamental forces and a wide range of hypothetical interactions. De…
Neutron optical test of completeness of quantum root-mean-square errors
Stephan Sponar, Armin Danner, Masanao Ozawa +1
One of the major problems in quantum physics has been to generalize the classical root-mean-square error to quantum measurements to obtain an error measure satisfying both soundnes…
Long-Time Correlations in Single-Neutron Interferometry Data
M. Willsch, D. Willsch, K. Michielsen +5
We present a detailed analysis of the time series of time-stamped neutron counts obtained by single-neutron interferometry. The neutron counting statistics display the usual Poisso…
Experimental Test of Entropic Noise-Disturbance Uncertainty Relations for Three-Outcome Qubit Measurements
Stephan Sponar, Armin Danner, Vito Pecile +3
Information-theoretic uncertainty relations formulate the joint immeasurability of two non-commuting observables in terms of information entropies. The trade-off of the accuracy in…