Semi-device-independent random number generation with flexible assumptions
| Authors | |
|---|---|
| Year of publication | 2021 |
| Type | Article in Periodical |
| Magazine / Source | NPJ QUANTUM INFORMATION |
| MU Faculty or unit | |
| Citation | |
| Web | https://www.nature.com/articles/s41534-021-00387-1 |
| Doi | http://dx.doi.org/10.1038/s41534-021-00387-1 |
| Keywords | random number generation; QRNG |
| Description | Our ability to trust that a random number is truly random is essential for fields as diverse as cryptography and fundamental tests of quantum mechanics. Existing solutions both come with drawbacks-device-independent quantum random number generators (QRNGs) are highly impractical and standard semi-device-independent QRNGs are limited to a specific physical implementation and level of trust. Here we propose a framework for semi-device-independent randomness certification, using a source of trusted vacuum in the form of a signal shutter. It employs a flexible set of assumptions and levels of trust, allowing it to be applied in a wide range of physical scenarios involving both quantum and classical entropy sources. We experimentally demonstrate our protocol with a photonic setup and generate secure random bits under three different assumptions with varying degrees of security and resulting data rates. |
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