The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …

Quantum metrology holds the promise of an early practical application of quantum
technologies, in which measurements of physical quantities can be made with much greater …

The field of classical stochastic processes forms a major branch of mathematics. Stochastic
processes are, of course, also very well studied in biology, chemistry, ecology, geology …

We present a framework to treat quantum networks and all possible transformations thereof,
including as special cases all possible manipulations of quantum states, measurements …

Characterization protocols have so far played a central role in the development of noisy
intermediate-scale quantum (NISQ) computers capable of impressive quantum feats. This …

A no-signalling channel transforming quantum systems in Alice's and Bob's local
laboratories is compatible with two different causal structures:(A⪯ B) Alice's output causally …

We present an instance of a task of minimum-error discrimination of two qubit-qubit quantum
channels for which a sequential strategy outperforms any parallel strategy. We then …

We develop the general framework of virtual resource distillation, an alternative distillation
strategy proposed in Phys. Rev. Lett. 132, 050203 (2024) 10.1103/PhysRevLett …

In the classical domain, it is well known that divisibility does not imply that a stochastic
process is Markovian. However, for quantum processes, divisibility is often considered to be …

Quantum channels underlie the dynamics of quantum systems, but in many practical settings
it is the channels themselves that require processing. We establish universal limitations on …