Author

V. Giovannetti

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Preprint Sep 2026

Technical analysis of the Resource-efficient Quantum Walkers Quantum Random Access Memory

Quantum Random Access Memory (qRAM) is a critical component for achieving quantum advantage in algorithms ranging from database search to quantum machine learning. In a recently introduced model [arXiv:2508.02855], we proposed a resource-efficient qRAM architecture based on discrete-time quantum walkers. This article s...

Giuseppe De Riso, Giuseppe Catalano, S. Lloyd et al. · 0 citations

Preprint Jul 2026

Bosonic quantum communication beyond the thermal threshold

The quantum capacity of the bosonic thermal attenuator, which is given by the regularization of its coherent information, is unknown. The seminal work of Holevo and Werner established in 1999 the standard one-use lower bound obtained from input thermal states. We first prove that this long-standing lower bound is the e...

Francesco Anna Mele, Giuseppe Catalano, Marco Fanizza et al. · 0 citations