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6 papers · 2 filters
Hybrid Quantum Cryptography from Communication Complexity
Francesco Mazzoncini, Balthazar Bauer, Peter Brown +1
We introduce an explicit construction for a key distribution protocol in the Quantum Computational Timelock (QCT) security model, where one assumes that computationally secure encr…
Information-theoretic generalization bounds for learning from quantum data
Matthias Caro, Tom Gur, Cambyse Rouzé +2
Learning tasks play an increasingly prominent role in quantum information and computation. They range from fundamental problems such as state discrimination and metrology over the…
Limitations of local update recovery in stabilizer-GKP codes: a quantum optimal transport approach
Robert König, Cambyse Rouzé
Local update recovery seeks to maintain quantum information by applying local correction maps alternating with and compensating for the action of noise. Motivated by recent constru…
Expanding bipartite Bell inequalities for maximum multi-partite randomness
Lewis Wooltorton, Peter Brown, Roger Colbeck
Nonlocal tests on multi-partite quantum correlations form the basis of protocols that certify randomness in a device-independent (DI) way. Such correlations admit a rich structure,…
Energy preserving evolutions over Bosonic systems
Paul Gondolf, Tim Möbus, Cambyse Rouzé
The exponential convergence to invariant subspaces of quantum Markov semigroups plays a crucial role in quantum information theory. One such example is in bosonic error correction…
A Quadratic Speedup in the Optimization of Noisy Quantum Optical Circuits
Robbe De Prins, Yuan Yao, Anuj Apte +1
Linear optical quantum circuits with photon number resolving (PNR) detectors are used for both Gaussian Boson Sampling (GBS) and for the preparation of non-Gaussian states such as…