Experimental quantum key distribution beyond the repeaterless secret key capacity
نویسندگان
چکیده
منابع مشابه
Quantum Flows for Secret Key Distribution
In practice, the security of a Quantum Key Distribution (QKD) system relies not only on quantum mechanical principles, but it also significantly relies on the physical implementation of the protocol. Nowadays, technological detector loopholes of QKD systems have been demonstrated, and some successful attacks that exploit vulnerabilities of the Avalanche Photo Diodes (APD’s) have been performed....
متن کاملQuantum cryptography beyond quantum key distribution
Quantum cryptography is the art and science of exploiting quantum mechanical effects in order to perform cryptographic tasks. While the most well-known example of this discipline is quantum key distribution (QKD), there exist many other applications such as quantum money, randomness generation, secure twoand multi-party computation and delegated quantum computation. Quantum cryptography also st...
متن کاملExperimental measurement-device-independent quantum key distribution.
Quantum key distribution is proven to offer unconditional security in communication between two remote users with ideal source and detection. Unfortunately, ideal devices never exist in practice and device imperfections have become the targets of various attacks. By developing up-conversion single-photon detectors with high efficiency and low noise, we faithfully demonstrate the measurement-dev...
متن کاملExperimental quantum key distribution with decoy states.
To increase dramatically the distance and the secure key generation rate of quantum key distribution (QKD), the idea of quantum decoys--signals of different intensities--has recently been proposed. Here, we present the first experimental implementation of decoy state QKD. By making simple modifications to a commercial quantum key distribution system, we show that a secure key generation rate of...
متن کاملImproved Secret Key Rate in Quantum Key Distribution using highly irregular Low-Density Parity-Check codes
Quantum key distribution (QKD) has proven to be the most mature subfield of quantum information theory, elegantly spanning the gap between theory and practice. It is a simple, and yet sophisticated idea, in which the fundamental principles of modern quantum mechanics are employed to distribute a provably secure cryptographic key between two parties. With many variations of this scheme realized,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Photonics
سال: 2019
ISSN: 1749-4885,1749-4893
DOI: 10.1038/s41566-019-0377-7