H2020Individual fellowship2017–2019

HyQuIP · Hybrid Quantum Integrated Photonics

Horizon 2020 — Marie Skłodowska-Curie Actions

Duration
2017-03-01 → 2019-02-28
EU contribution
€185,857
Participants
1
Scheme
MSCA-IF-EF-ST

Lines connect the coordinator with its partners.

Results in brief

Hybrid Quantum Integrated Photonics

Photons are ideal carriers of quantum information, as demonstrated in long distance quantum cryptography experiments. Schemes for quantum information processing based on photons have been proposed over the past 10 years, but implementation has progressed slowly. The reason is the lack of scalability of current approaches. In Hybrid Quantum Integrated Photonics (HyQuIP), we developed a new deterministic and scalable quantum integrated toolbox to generate, manipulate, and detect photons all on-a-chip, thus aiming to remove the bottlenecks currently limiting scalability of quantum science experiments. By relying on CMOS compatible hybrid technology and innovative nanomanipulation techniques, important milestones for on-chip quantum computing were realized. HyQuIP aimed to position Europe at the forefront globally in quantum information science. Quantum photonic technologies, the field of research in HyQuIP, will have an impact on the economy and society through commercialization and the creation of secure quantum communication, quantum metrology and imaging, quantum networks and quantum computing. Moreover, HyQuIP delivered the possibility to manipulate and measure quantum states on a single chip which is bound to boost the development of quantum sensing schemes and make the vast potential power of quantum systems available to a wide range of applications. Interactions and entanglement can be studied in new conditions with complex quantum states generated and manipulated on-chip, which has not yet been feasible with the conventional table-top approach. From a technological point of view, new fabrication methods were presented, that combine semiconductor, superconductors, piezoelectric materials in new hybrid photonic platform, which are some of the requirements the quantum optics community is striving for to implement on-chip quantum computing.

Data: CORDIS, © European Union

Project objective

The weirdness of quantum physics is among the most counterintuitive properties of nature. It is traced back to the early theoretical discussions on entanglement between Albert Einstein and Niels Bohr in the 1930s, which was then experimentally observed in the 1980s and became central in quantum information processing, communication and sensing schemes over the past decade. Utilizing the quantum nature of photons has so far been limited to small number of qubits, while being performed on table-top experimental setups composed of a large number of macroscopic components. This sets a limit to the complexity and efficiency of experiments that can be carried out. In HyQuIP, hybrid quantum integrated photonic circuits will be developed to generate, manipulate, and detect photons all on-a-chip to remove the bottlenecks currently limiting scalability of quantum science experiments. Our integrated approach will realize important milestones for fundamental understanding of the quantum nature of photons in addition to on-chip quantum computing to realize the ambitious schemes that have been put forward by theorists over the past decade. We will demonstrate the first fully-integrated, from generation to detection, quantum transceiver with multi-qubit inference on chip. Furthermore, we will explore the exciting regime of reducing the bandwidth of single-photons to zero in a dynamic photonic device. HyQuIP will not only open up new fundamental tests based on the quantum nature of reality and entanglement, it will also open up new applications: In quantum metrology providing superior sensitivity to classical schemes. Also in quantum imaging and lithography where multi-qubit quantum states can achieve super resolution beating the Rayleigh criterion for diffraction limit. The possibility to manipulate and measure quantum states on a single chip beyond two particles is bound to boost the implementation of practical quantum computing schemes.

Original text from CORDIS.

Participants

  • KUNGLIGA TEKNISKA HOEGSKOLAN · StockholmCoordinatorSweden

Links

Data: CORDIS, © European Union