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quant-ph2021★ 3 cited
Minimal scheme for certifying three-outcome qubit measurements in the prepare-and-measure scenario
Jonathan Steinberg, H. Chau Nguyen, Matthias Kleinmann
The number of outcomes is a defining property of a quantum measurement, in particular, if the measurement cannot be decomposed into simpler measurements with fewer outcomes. Import…
quant-ph2020★ 9 cited
Quaternionic quantum theory admits universal dynamics only for two-level systems
Jonathan Steinberg, H. Chau Nguyen, Matthias Kleinmann
We revisit the formulation of quantum mechanics over the quaternions and investigate the dynamical structure within this framework. Similar to standard complex quantum mechanics, t…