Determining the quantum expectation value by measuring a single photon
Sign Up to like & getrecommendations! Published in 2017 at "Nature Physics"
DOI: 10.1038/nphys4223
Abstract: A photonic experiment demonstrates protective measurements, a type of weak measurements. These make it possible to determine the expectation value of the polarization of a photon from a single measurement. read more here.
Keywords: photon; expectation value; expectation; quantum expectation ... See more keywords
Determining quantum coherence with minimal resources
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aacbea
Abstract: We characterize minimal measurement setups for validating the quantum coherence of an unknown quantum state. We show that for a $d$-level system, the optimal strategy consists of measuring $d$ orthonormal bases such that each measured… read more here.
Keywords: quantum coherence; coherence; basis; minimal resources ... See more keywords