5 papers
Quantifying randomness with measurement incompatibility
Sebastian Schlösser, Pauli Jokinen, Martin Plávala +3
We present a trade-off between the amount of observed measurement incompatibility and the capabilities of a classical Eavesdropper in a prepare-and-measure scenario. The result is…
Quantum aspects of the classical Maxwell's equations in free space from the perspective of the correspondence principle
M. F. Araujo de Resende, Leonardo S. F. Santos, R. Albertini Silva
Due to the advent of Quantum Mechanics' 100th anniversary in 2025, we wrote this review paper in order to present a discussion that addresses the foundations of this theory. And si…
Device-independent quantum memory certification in two-point measurement experiments
Leonardo S. V. Santos, Peter Tirler, Michael Meth +6
Quantum memories are key components of emerging quantum technologies. They are designed to store quantum states and retrieve them on demand without losing features such as superpos…
Quantifying information flow in quantum processes
Leonardo S. V. Santos, Zhen-Peng Xu, Jyrki Piilo +1
We present a framework for quantifying information flow within general quantum processes. For this purpose, we introduce the signaling power of quantum channels and discuss its rel…
Two-point measurement correlations beyond the quantum regression theorem
Leonardo Santos, Otfried Gühne, Stefan Nimmrichter
Temporal correlations are fundamental in quantum physics, yet their computation is often challenging. The regression theorem (or hypothesis) serves as a key tool in this context, o…