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Characterising the Hierarchy of Multi-time Quantum Processes with Classical Memory
Memory is the fundamental form of temporal complexity: when present but uncontrollable, it manifests as non-Markovian noise; …
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A unifying framework for differentially private quantum algorithms
Differential privacy is a widely used notion of security that enables the processing of sensitive information. In short, differentially …
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Inflated Graph States Refuting Communication-Assisted LHV Models
Standard Bell inequalities hold when distant parties are not allowed to communicate. Barrett et al. found correlations from Pauli …
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High-speed continuous-variable quantum key distribution with advanced digital signal processing
Continuous-variable quantum key distribution (CV-QKD) is a promising solution for providing high secure key rates in moderate loss …
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Verifiable blind quantum computing with trapped ions and single photons
We present the first hybrid matter-photon implementation of verifiable blind quantum computing. We use a trapped-ion quantum server and …
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Dispositifs électroniques avancés pour la CV-QKD
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Quantum security of subset cover problems
The subset cover problem for $k \geq 1$ hash functions, which can be seen as an extension of the collision problem, was introduced in …
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Higher-order Process Matrix Tomography of a passively-stable Quantum SWITCH
The field of indefinite causal order (ICO) has seen a recent surge in interest. Much of this research has focused on the quantum …
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Asymmetric Quantum Secure Multi-Party Computation With Weak Clients Against Dishonest Majority
Secure multi-party computation (SMPC) protocols allow several parties that distrust each other to collectively compute a function on …
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Optimal universal quantum circuits for unitary complex conjugation
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