Descripción del proyecto
Un método nuevo permite interacciones eficaces entre fotones
Los fotones ofrecen la posibilidad de una computación cuántica escalable gracias a su capacidad de transmisión a larga distancia con bajas pérdidas, de multiplexación de la información cuántica y de funcionamiento en entornos estándar. Sin embargo, los fotones no interactúan fácilmente entre sí, lo que supone un reto para el procesamiento cuántico de la información (QIP, por sus siglas en inglés). Para solucionar este problema, el equipo del proyecto PANDA, financiado con fondos europeos, diseñará una matriz de átomos de estroncio neutros con un espaciado inferior a la longitud de onda que permita interacciones fotón-fotón deterministas y sin pérdidas. Esta configuración, combinada con una eficaz manipulación monofotónica, permitirá realizar potentes operaciones no lineales con varias aplicaciones de QIP. Los investigadores tienen previsto aplicar la plataforma propuesta al QIP de variable continua y al QIP de variable discreta.
Objetivo
The quantum properties of photons -- allowing low-loss long-distance transmission, multiplexing large amounts of quantum information into a single channel, and operations in standard, room-temperature settings -- yield great promise for scalable quantum computing (QC). However, low interaction is their great weakness for quantum information processing (QIP), as quantum circuits require photon-photon interactions. To date, two-photon interactions have only been facilitated either probabilistically with low efficiency or between individual photons via intermediaries with errors much too large for practical QIP. PANDA has an ambitious core goal of building the foundation for a photonic quantum computer: an array of neutral strontium atoms with subwavelength spacing carefully designed to harness collective effects to implement lossless, deterministic photon-photon interactions. Combined with novel high-efficiency single-photon handling, we will construct a powerful platform for strong, efficient, controllable non-linear operations with many QIP applications. These include deterministic two-photon quantum gates with unprecedented efficiency and repeat rates. We will especially apply our platform to continuous-variable (CV) QIP, particularly Measurement-Based QC, which fully utilizes quantum light field advantages, but has been hindered by the lack of deterministic non-Gaussian photon state generation and is not addressed in the Quantum Flagship. Using our platform for deterministic photon subtraction will address this and, with a CV theory roadmap we will develop, pave the way for photonic QC. Our two-photon gates will also be applicable to Discrete-Variable QIP, placing PANDA in a complementary position to many possible portfolio projects. PANDA incorporates world-class experimentalists and theorists from leading research groups and SMEs with the expertise required to develop core technology that will both yield marketable IPR and fulfill our ambitious objectives.
Ámbito científico
Palabras clave
Programa(s)
- HORIZON.3.1 - The European Innovation Council (EIC) Main Programme
Convocatoria de propuestas
HORIZON-EIC-2022-PATHFINDERCHALLENGES-01
Consulte otros proyectos de esta convocatoriaRégimen de financiación
HORIZON-EIC - HORIZON EIC GrantsCoordinador
75006 Paris
Francia