How to Trust a Quantum Box: Bell’s Theorem for Quantum Engineers

Prof. Stefano Pironio - Université libre de Bruxelles, Belgium

How to Trust a Quantum Box: Bell’s Theorem for Quantum Engineers

Prof. Stefano Pironio - Université libre de Bruxelles, Belgium

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DATE

2026-01-30

TIME

11:00-12:00

PLACE

R36567, 5F, Dept. of Physics, Building of Science College, NCKU

FIELD

Quantum Information Science

SPEAKER

Prof. Stefano Pironio - F.R.S.-FNRS Research Director, Laboratoire d’Information Quantique, ULB, Belgium

TITLE

How to Trust a Quantum Box: Bell’s Theorem for Quantum Engineers

ABSTRACT

How can we be sure that a quantum device really performs as intended? As quantum technologies promise secure communication, certified randomness, and unprecedented computational power, verifying their behavior becomes both essential and surprisingly challenging. One of the deepest results of 20th-century physics, Bell’s theorem, has become a practical tool: it allows us to test quantum behavior by treating devices as black boxes and observing only their input–output statistics. In this talk, I’ll introduce the central ideas behind this approach, known as device-independent quantum information, and show how fundamental physics offers new ways to build and trust quantum technologies.