Descrizione del progetto
Nuovi approcci alle interfacce quantistiche tra luce e materia
La realizzazione di interfacciamenti efficaci tra fotoni e atomi crea i presupposti per una vasta gamma di applicazioni, quali le memorie quantistiche per la luce e l’ottica non lineare a livello di singolo fotone. Nonostante le molte dimostrazioni spettacolari di interazioni atomo-luce, le attuali interfacce affrontano ancora grosse limitazioni. Unendo l’esperienza teorica e sperimentale della fisica atomica, l’ottica quantistica e la fotonica, il progetto DAALI, finanziato dall’UE, intende superare queste sfide. In particolare, i ricercatori svilupperanno nuove piattaforme fisiche come i sistemi nano-fotonici che offrono forze di accoppiamento atomo-fotone senza precedenti e svilupperanno nuovi paradigmi come quelli basati sulle serie atomiche per sfruttare il potere dell’interferenza delle onde.
Obiettivo
Realizing an efficient, controllable interface between photons and atoms or atom-like emitters forms the basis for wide-ranging applications, such as quantum memories for light and nonlinear optics at the single-photon level. However, despite many spectacular demonstrations of quantum atom-light interactions, such interfaces still face two major bottlenecks. First, the error bounds for most protocols scale unfavorably with system resources. Second, it is extremely difficult to improve these figures of merit in conventional systems.
Within this context, DAALI will pursue new, disruptive platforms and protocols, which offer novel solutions to boost important system parameters and/or reduce the resources needed for applications. In particular, we will:
• Develop state-of-the-art interfaces between atomic media and nano/micro-photonic systems. Such systems offer excellent potential for scalability and large atom-photon coupling strengths. Moreover, the flexibility to engineer their spatial modes and dispersion enables new, powerful paradigms that have no obvious analogue in macroscopic interfaces.
• Demonstrate novel protocols for quantum memories and photon-photon gates. These protocols will take advantage of novel mechanisms such as those found in nanophotonic interfaces, “selective radiance,” and strong atom-atom interactions. These novel effects can even enable error rates that scale exponentially better as a function of physical resources than previously known bounds.
DAALI brings together partners with theoretical and experimental expertise in atomic physics, quantum optics, and photonics, who will work together to solve the multi-disciplinary challenges needed to design and construct real systems that can maximally utilize and exploit these disparate concepts. Our results have the potential to completely re-define the technological possibilities of light-matter interfaces.
Campo scientifico
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H2020-FETOPEN-2018-2019-2020-01
Meccanismo di finanziamento
RIA - Research and Innovation actionCoordinatore
08860 Castelldefels
Spagna