Quantum theory is traditionally formulated using complex numbers. This imaginarity of
quantum theory has been quantified as a resource with applications in discrimination tasks …

In a Bell experiment, it is natural to seek a causal account of correlations wherein only a
common cause acts on the outcomes. For this causal structure, Bell inequality violations can …

Networks composed of independent sources of entangled particles that connect distant
users are a rapidly develo** quantum technology and an increasingly promising test-bed …

Nonlocality arising in networks composed of several independent sources gives rise to
phenomena radically different from that in standard Bell scenarios. Over the years, the …

The question of whether complex numbers play a fundamental role in quantum theory has
been debated since the inception of quantum mechanics. Recently, a feasible proposal to …

Quantum uncertainty relations constrain the precision of measurements across multiple non-
commuting quantum mechanical observables. Here, we introduce the concept of optimal …

Quantum networks play a crucial role in distributed quantum information processing,
enabling the establishment of entanglement and quantum communication among distant …

Imaginarity has proven to be a valuable resource in various quantum information processing
tasks. A natural question arises: can the imaginarity of quantum states be broadcast via real …

The resource theory of imaginarity studies the operational value of imaginary parts in
quantum states, operations, and measurements. Here we introduce and study the distillation …

Nonlocality captures one of the counterintuitive features of nature that defies classical
intuition. Recent investigations reveal that our physical world's nonlocality is at least …