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Explicit construction of a 2-design of from the theory of angular momentum
Rocco Maggi, Cosmo Lupo, Saverio Pascazio
The main aim of this work is to present an explicit construction of a 2-design of , relying only on a tool that belongs to every physicists toolbox: the theory of angul…
Finite-size secret-key rates of discrete modulation continuous-variable quantum key distribution under Gaussian attacks
Gabriele Staffieri, Giovanni Scala, Cosmo Lupo
Quantum conditional entropies play a fundamental role in quantum information theory. In quantum key distribution, they are exploited to obtain reliable lower bounds on the secret-k…
Dynamical cluster-based strategy for improving tensor network algorithms in quantum circuit simulations
Andrea De Girolamo, Paolo Facchi, Peter Rabl +3
We optimize matrix-product state-based algorithms for simulating quantum circuits with finite fidelity, specifically the time-evolving block decimation (TEBD) and the density-matri…
Percolation thresholds and connectivity in quantum networks
Andrea De Girolamo, Giuseppe Magnifico, Cosmo Lupo
We study entanglement percolation in qubit-based planar quantum network models of arbitrary topology, where neighboring nodes are initially connected by pure states with quenched d…