31 citations · 37 across the 6 of their papers we have counts for
6 papers · 1 filter
Almost all pure entangled states enable unbounded nonlocality sharing
Anna Steffinlongo, Nicola D'Alessandro, Martin J. Renner
We establish a connection between Hardy's paradox and nonlocality sharing in sequential bipartite scenarios, where each subsystem is measured in turn by a chain of observers. We sh…
Simulating Noncausality with Quantum Control of Causal Orders
Anna Steffinlongo, Hippolyte Dourdent
Logical consistency with free local operations is compatible with non-trivial classical communications, where all parties can be both in each other's past and future-a phenomenon k…
Long-distance device-independent quantum key distribution using single-photon entanglement
Anna Steffinlongo, Mariana Navarro, Marina Cenni +3
Device-independent quantum key distribution (DIQKD) provides the strongest form of quantum security, as it allows two honest users to establish secure communication channels even w…
Device-Independent Quantum Key Distribution beyond qubits
Javier Rivera-Dean, Anna Steffinlongo, Neil Parker-Sánchez +2
Device-Independent Quantum Key Distribution (DIQKD) aims to generate secret keys between two parties without relying on trust in their employed devices, imposing strict noise const…
Recycling nonlocality in a quantum network
Ya-Li Mao, Zheng-Da Li, Anna Steffinlongo +6
It has recently been discovered that the nonlocality of an entangled qubit pair can be recycled for several Bell experiments. Here, we go beyond standard Bell scenarios and investi…
Projective measurements are sufficient for recycling nonlocality
Anna Steffinlongo, Armin Tavakoli
Unsharp measurements are widely seen as the key resource for recycling the nonlocality of an entangled state shared between several sequential observers. Contrasting this, we here…