Author

Filippo Girardi

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Preprint Sep 2026

A fully Gaussian quantum Stein's lemma

A central yet mysterious problem in quantum information is the asymptotic distinguishability of quantum states under restricted measurements. Here we look at asymptotic asymmetric hypothesis testing for general multi-mode bosonic Gaussian states restricted to arbitrary collective Gaussian measurements. We establish a s...

Filippo Girardi, Jacopo Rizzo, Leah Turner et al. · 0 citations

Preprint Sep 2026

Generalised quantum Stein's lemma more robust than ever

The generalised quantum Stein's lemma is a key result in quantum hypothesis testing, and connects this fundamental primitive of quantum information processing with quantum resource manipulation, a task that is central for technological applications. Prior works have proved this statement in the idealised setting of ind...

Filippo Girardi, Kuan-Yi Lee, Masahito Hayashi et al. · 3 citations