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Certifying the Building Blocks of Quantum Computers from Bell`s Theorem
Journal
Physical Review Letters
Volume
121
Number
18
Pages / Article-Number
180505
Abstract
Bell’s theorem has been proposed to certify, in a device-independent and robust way, blocks either producing or measuring quantum states. In this Letter, we provide a method based on Bell’s theorem to certify coherent operations for the storage, processing, and transfer of quantum information. This completes the set of tools needed to certify all building blocks of a quantum computer. Our method distinguishes itself by its robustness to experimental imperfections, and so could be used to certify that today’s quantum devices are qualified for usage in future quantum computers.
