Descrizione del progetto
Innovativi sistemi fotonici integrati per rilevare con efficienza la luce compressa
Gli stati compressi della luce dispongono di correlazioni quantistiche che sollevano meno incertezze di misurazione rispetto agli stati classici corrispondenti. Tali caratteristiche quantistiche possono essere sfruttate per misurazioni ottiche a precisione elevata, radiometria, distribuzione a chiave quantistica, ecc. Gli attuali chip nanofotonici che impiegano rilevatori di singoli fotoni a nanofili superconduttori (SNSPD, Superconducting Nanowire Single-Photon Detectors) e con guida d’onda integrata dispongono di una capacità limitata di rilevare la luce compressa, soprattutto a causa delle perdite di accoppiamento sia degli accoppiatori fibra-chip che delle interfacce da guida d’onda a SNSPD. Finanziato dal programma di azioni Marie Skłodowska-Curie, il progetto ESSENS svilupperà un sistema fotonico integrato per individuare in modo efficiente la luce compressa a lunghezze d’onda di telecomunicazione. I sistemi proposti condurranno a utilizzi entusiasmanti della luce compressa in applicazioni quali la simulazione quantistica, la comunicazione e il rilevamento attraverso centinaia di rilevatori e interferometri su chip monolitici altamente integrati con una stabilità prossima alla perfezione.
Obiettivo
Quantum photonics has become a key driver for the development of novel applications—such quantum information processing and sensing—that leverage quantum effects to open new possibilities beyond classical capabilities. Squeezed states of light are particularly promising for such applications and have been employed, e.g. to conduct Gaussian boson sampling experiments. Despite the success of these experiments, the use of bulk optical components hinders scalability and phase stabilization. Thus, higher levels of photonic integration are strongly desired. However, the exploitation of squeezed light, which critically relies on efficient detection, has not yet been achieved using nanophotonic chips because of the limited efficiency of the required fiber-chip couplers and single-photon detectors (SPDs).
In this project, an optical fiber–accessible, photonic integrated system will be implemented to demonstrate on-chip detection of squeezed light at telecom wavelengths. To accomplish this goal, two approaches will be employed to assist fiber-chip couplers and waveguide-integrated superconducting nanowire SPDs, enabling access to previously inaccessible regions of the design space: subwavelength grating (SWG) metamaterials and direct-laser-writing (DLW) fabrication technology. The outcome of this project will break new ground for exploiting squeezed states for applications in quantum simulation, communication, and sensing with hundreds of detectors and interferometers on highly integrated, monolithic chips with near perfect phase stability.
This project will be completed in a leading interdisciplinary research group. The applicant’s background in integrated photonics and SWG metamaterial engineering will be combined with the expertise on quantum detectors and the DLW nanofabrication capabilities of the host group. The proposed work will expand the applicant’s experience, skills and professional networks, re-enforcing the advance of his career as an independent researcher.
Campo scientifico
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsoptical sensors
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computers
- engineering and technologynanotechnologynanophotonics
- natural sciencesphysical sciencesopticsfibre optics
- natural sciencesphysical scienceselectromagnetism and electronicssuperconductivity
Parole chiave
Programma(i)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Meccanismo di finanziamento
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinatore
48149 MUENSTER
Germania