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8 papers · 2 filters
Multipartite entanglement verification resistant against dishonest parties
Anna Pappa, André Chailloux, Stephanie Wehner +2
Future quantum information networks will likely consist of quantum and classical agents, who have the ability to communicate in a variety of ways with trusted and untrusted parties…
Nonlocality of Symmetric States
Zizhu Wang, Damian Markham
In this paper we study the non-local properties of permutation symmetric states of n-qubits. We extend the bipartite Hardy paradox and the associated CH-inequality to n-party permu…
Long Distance Continuous-Variable Quantum Key Distribution with a Gaussian Modulation
Paul Jouguet, Sébastien Kunz-Jacques, Anthony Leverrier
We designed high-efficiency error correcting codes allowing to extract an errorless secret key in a continuous-variable quantum key distribution protocol using a Gaussian modulatio…
Using Hash-Based Signatures to Bootstrap Quantum Key Distribution
Sébastien Kunz-Jacques, Paul Jouguet
Quantum Key Distribution is a secret distribution technique that requires an authenticated channel. This channel is usually created on top of an un-authenticated communication medi…
Optimal photon-pair single mode coupling in narrow-band spontaneous parametric down-conversion with arbitrary pump profile
Jean-Loup Smirr, Matthieu Deconinck, Robert Frey +3
A theoretical study of the performance of single-mode coupled spontaneous parametric downconversion sources is proposed, which only requires very few assumptions of practical inter…
Practical Quantum Coin Flipping
Anna Pappa, André Chailloux, Eleni Diamanti +1
In this article we show for the first time that quantum coin flipping with security guarantees that are strictly better than any classical protocol is possible to implement with cu…