H2020Индивидуална стипендия2018–2020

GENIUS · Gaussian entropic inequalities and uncertainty relations for communication and secure quantum key distribution

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2018-04-01 → 2020-06-28
Финансиране от ЕС: 200 195 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Квантовите граници на скоростта на комуникация и сигурността при споделянето на тайни кодове се анализират чрез математически неравенства. Това помага за определяне на максималния капацитет на бъдещите устройства за криптиране и доказване на тяхната защитеност от опити за подслушване.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Gaussian entropic inequalities and uncertainty relations for communication and secure quantum key distribution

Information and communication technologies are essential to modern society as the internet is pervading all aspects of our lives. Quantum mechanics imposes fundamental limits to the communication rates. The first objective of GENIUS was to determine these limits. Given the amount of sensitive information sent through the internet, secure communications are essential to our society. To fulfill this need, the EU is investing in quantum key distribution with the 1G€ Quantum Technology Flagship. Quantum key distribution is a technique to generate a secret key shared between two parties. The essential feature of quantum mechanics is that any measurement of a system unavoidably disturbs it. Quantum key distribution exploits this feature to detect any attempt of intercepting the communication and guarantee the security of the key. The second objective of GENIUS was to determine the maximum rates for quantum key distribution achievable by the forthcoming generation of quantum key distribution devices and to prove their perfect security.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Information and communication technologies are essential to modern society as the internet is pervading all aspects of our lives. Quantum mechanics imposes a fundamental limit to the communication rates. Determining this limit is one of the two challenges addressed by GENIUS. Given the amount of sensitive information sent through the internet, secure communications are essential to our society. To fulfill this need, the EU is investing in quantum key distribution (QKD) with the 1G€ Quantum Technology Flagship. The other challenge addressed by GENIUS is determining the maximum rate for secure communication that can be achieved by the forthcoming generation of QKD devices and proving their perfect security.To address the above challenges, I will firstly apply methods from functional analysis to prove new fundamental entropic inequalities for quantum Gaussian channels. Quantum Gaussian channels provide a mathematical model for the propagation of electromagnetic signals. Entropy is the core of information theory and quantifies the information content of a system. These inequalities will determine the maximum rates allowed by quantum mechanics for communication and QKD. Secondly, I aim to propose and prove a new fundamental entropic uncertainty relation for the heterodyne measurement. This uncertainty relation will prove the perfect security of the most promising QKD protocol. These new insights will have an enormous impact on both quantum communication and quantum cryptography and will stimulate what will be the first realization of quantum devices capable of communication and guaranteed perfectly secure QKD at the maximum possible rates. The experience of my supervisor Prof. Solovej in functional analysis and entropic inequalities combined with the experience of my co-supervisor Prof. Christandl in quantum cryptography make the QMATH group the ideal environment for carrying out this project and establishing myself as a leading independent multidisciplinary researcher.

Оригинален текст от CORDIS (на английски).

Участници

KOBENHAVNS UNIVERSITET · KOBENHAVNКоординаторДания