In the current era of noisy intermediate-scale quantum (NISQ) devices, research on the
theory of open system dynamics has a crucial role to play. In particular, understanding and …

From correlations in measurement outcomes alone, can two otherwise isolated parties
establish whether such correlations are atemporal? That is, can they rule out that they have …

Quantum channels breaking entanglement, incompatibility, or nonlocality are defined as
such because they are not useful for entanglement-based, one-sided device-independent …

Liang information flow is widely used in classical systems and network theory for causality
quantification and has been applied widely, for example, to finance, neuroscience, and …

We develop techniques to probe the dynamics of quantum information and implement them
experimentally on an IBM superconducting quantum processor. Our protocols adapt shadow …

We consider the relation between three different approaches to defining quantum states
across several times and locations: the pseudo-density matrix (PDM), the process matrix …

Spatial and temporal quantum correlations can be unified in the framework of the pseudo-
density operators (PDOs), and quantum causality between the involved events in an …

We consider the quantum version of inferring the causal relation between events. There has
been recent progress towards identifying minimal interventions and observations needed …

Two-time expectation values of sequential measurements of dichotomic observables are
known to be time symmetric for closed quantum systems. Namely, if a system evolves …

We consider the certification of temporal quantum correlations using the pseudo-density
matrix (PDM), an extension of the density matrix to the time domain, where negative …