SMuPhoS · Solid-State Multi-Photon Sources for Larger-Scale Quantum Optics and Photonics
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2017-12-01 → 2019-11-30
- EU contribution
- €173,076
- Participants
- 1
- Scheme
- MSCA-IF-EF-ST
Lines connect the coordinator with its partners.
Results in brief
Solid-State Multi-Photon Sources for Larger-Scale Quantum Optics and Photonics
We live in times where the laws of quantum physics are finding ways to make an impact in society, by enabling applications ranging from enhanced computing capabilities, to communication tasks where security is guaranteed by these laws of nature themselves. Quantum photonics exploits the non-classical (quantum) properties of light in order to develop light-based quantum technologies. In recent years, the advancement of quantum photonics had been hindered by the photon source technology exploited thus far, based on parametric conversion processes. This older photonic technology constrained the number of photons (single particles of light) that could be manipulated at once, hence limiting the complexity of the protocols being developed. As a result, advancements in quantum photonics have been slow and constrained to mostly non-scalable applications. This project tackled some of these issues by utilising a different and recent technology: efficient single-photon sources based on semiconductor quantum dots. The objectives of this work consisted, in short, to advance upon the complexity of solid-state based quantum photonics by developing efficient and scalable multi-photon sources based on this quantum dot technology, allowing its use in scalable quantum photonics protocols. Two of such protocols are: on the one-hand, the demonstration of solid-state based heralded entanglement generation, and, on the other hand, the interference of an increasing number of single-photons in a scalable platform.
Data: CORDIS, © European Union
Project objective
Optical quantum technologies are at the forefront of a forthcoming second quantum revolution, where advances in quantum photonics at the single-photon level are enabling new technologies at accelerating pace: from applications for secure quantum communication, to the realization of quantum simulation and quantum computation protocols. The scaling of quantum photonics, however, has long been restrained by low efficiencies in current photon sources, what limits the complexity of the protocols that are being demonstrated. The host team has very recently succeeded in the fabrication of solid-state single-photon sources about 20 times more efficient than current alternatives. These sources have reached the best possible performance in terms of purity and indistinguishability, as required for scalable applications. In this proposal, the high performance of these devices is combined with the expertise in quantum optics of the applicant to advance the state-of-the-art in quantum photonics to the efficient and high-rate manipulation of multiple single-photons. A new era of larger-scale quantum photonics will be attained by enabling the manipulation of multiple photons past the qubyte threshold of 8 photons. The project will include the demonstration of 10-photon sources with sub-Hertz detection rates; the implementation of heralded entangling gates run at unprecedented rates; as well as the demonstration of multi-photon interference with up to 8-photons in a Boson Sampling machine. This project will thus importantly advance upon the complexity of current multi-photon research, opening a new era of solid-state based quantum optics and photonics.
Original text from CORDIS.
Participants
- CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS · ParisCoordinatorFrance
Links
Data: CORDIS, © European Union