We consider the problem of testing the dimension of uncharacterized classical and quantum
systems in a prepare-and-measure setup. Here we assume the preparation and …

Dimension witnesses allow one to test the dimension of an unknown physical system in a
device-independent manner, that is, without placing assumptions about the functioning of …

Leggett and Garg formulated macrorealist models encoding our intuition on classical
systems, ie, physical quantities have a definite value that can be measured with minimal …

A dimension witness provides a device-independent certification of the minimal dimension
required to reproduce the observed data without imposing assumptions on the functioning of …

State and measurement tomography make assumptions about the experimental states or
measurements. These assumptions are often not justified because state preparation and …

We report on an experimental test of classical and quantum dimension. We have used a
dimension witness that can distinguish between quantum and classical systems of …

Dimensionality plays an important role in various information-theoretic tasks and can be
seen as a key resource for quantum information processing. In this work, for the first time to …

We consider networks featuring preparation, transformation, and measurement devices, in
which devices exchange communication via mediating physical systems. We investigate the …

Preparing and measuring physical systems are the operational building blocks of any
physical experiment, and to describe them is the first purpose of any physical theory …

We consider the problem of characterizing the set of input-output correlations that can be
generated by an arbitrarily given quantum measurement. Our main result is to provide a …