HEИндивидуална стипендия2024–2025

EPRoxy · Quantum Memory interface based on multicolor unconditional quantum teleportation

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

Период: 2024-04-01 → 2025-09-30
Финансиране от ЕС: 161 201 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Квантовите памети се изследват чрез телепортация на състояния между различни дължини на вълната, например от атомни групи към светлина. Това помага за свързването на квантовите устройства с настоящите телекомуникационни мрежи и развитието на бъдещ квантов интернет.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Quantum Memory interface based on multicolor unconditional quantum teleportation

Quantum communication relies on quantum memories to store and retrieve information, but current technologies are limited by strict wavelength requirements. This prevents integration with standard telecom channels and hinders hybrid quantum networks. The EPRoxy project tackles this challenge by using unconditional quantum teleportation with two-colour EPR entanglement, enabling transfer of quantum states between different wavelengths and from atomic ensembles to light. These breakthroughs will remove a major interoperability barrier, allowing quantum memories to connect directly to existing communication infrastructures. The results will support advanced protocols like quantum repeaters and entanglement swapping, essential for long-distance quantum communication. The impact is significant: EPRoxy will accelerate the development of a continental quantum internet, strengthen Europe’s digital sovereignty, and create opportunities for industrial applications through photonic integration. Public engagement activities will ensure societal understanding of quantum technologies and their implications.

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

Цел на проекта

Quantum Memories are crucial technologies in Quantum Communications infrastructures. The ability to store and retrieve quantum information can simplify a complex process and increase the flexibility of current communication networks. For this reason, different quantum systems are currently being investigated to produce stable and reliable quantum memories(CITE). Despite their potential, the practical application of these technologies is hindered by intrinsic limitations in their read/write process which is generally based on an optical link. This coupling depends on the specific phenomenon used to store the quantum information, and it imposes stringent requirements on the optical wavelengths used as interface. As a result, two issues arise: Firstly, it's not feasible to connect quantum memories with incompatible wavelengths, and secondly, most quantum memories cannot be integrated with standard communication channels. Thus, implementing Quantum Memories in real-case applications requires developing a new writing/reading approach to overcome this constraint. In this project, I will demonstrate that unconditional quantum teleportation can overcome the wavelenght requirement. This communication protocol uses both a quantum and classical channel to transfer quantum information between two distinct systems. By employing a two-colour Einstein-Podolsky-Rosen (EPR) vacuum-squeezed entangled state as the quantum channel, we can restrict the quantum memory's constraints to just one side of the connection, enabling us to choose the second wavelength based on the external device. I will carry out this project in collaboration with the Danish Center for Quantum Optics (Quantop) led by Prof. Eugene Polzik at the University of Copenhagen (UCPH).

Оригинален текст от CORDIS (на английски).

Участници

KOBENHAVNS UNIVERSITET · KOBENHAVNКоординаторДания