Kochen-specker contextuality
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In
short, it states that quantum mechanics is in conflict with classical models in which the result …
short, it states that quantum mechanics is in conflict with classical models in which the result …
Certifying quantum temporal correlation via randomized measurements: Theory and experiment
We consider the certification of temporal quantum correlations using the pseudo-density
operator (PDO), an extension of the density matrix to the time domain, where negative …
operator (PDO), an extension of the density matrix to the time domain, where negative …
Leggett-Garg macrorealism and temporal correlations
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 …
systems, ie, physical quantities have a definite value that can be measured with minimal …
Implementing quantum dimensionality reduction for non-Markovian stochastic simulation
Complex systems are embedded in our everyday experience. Stochastic modelling enables
us to understand and predict the behaviour of such systems, cementing its utility across the …
us to understand and predict the behaviour of such systems, cementing its utility across the …
Quantum clocks are more accurate than classical ones
A clock is, from an information-theoretic perspective, a system that emits information about
time. One may therefore ask whether the theory of information imposes any constraints on …
time. One may therefore ask whether the theory of information imposes any constraints on …
Entanglement-breaking channels are a quantum memory resource
Entanglement-breaking channels (equivalently, measure-and-prepare channels) are an
important class of quantum operations noted for their ability to destroy multipartite spatial …
important class of quantum operations noted for their ability to destroy multipartite spatial …
Delayed-choice causal order and nonclassical correlations
Recent frameworks describing quantum mechanics in the absence of a global causal order
admit the existence of causally indefinite processes, where it is impossible to ascribe causal …
admit the existence of causally indefinite processes, where it is impossible to ascribe causal …
Optimization of Time-Ordered Processes in the Finite and Asymptotic Regimes
Many problems in quantum information theory can be formulated as optimizations over the
sequential outcomes of dynamical systems subject to unpredictable external influences …
sequential outcomes of dynamical systems subject to unpredictable external influences …
Temporal correlations in the simplest measurement sequences
We investigate temporal correlations in the simplest measurement scenario, ie, that of a
physical system on which the same measurement is performed at different times, producing …
physical system on which the same measurement is performed at different times, producing …
Witnessing environment dimension through temporal correlations
We introduce a framework to compute upper bounds for temporal correlations achievable in
open quantum system dynamics, obtained by repeated measurements on the system. As …
open quantum system dynamics, obtained by repeated measurements on the system. As …