Quantum Dot coupling engineering (and dynamic spin decoupling/deep nuclei cooling): 2-dimensional cluster state generation for quantum information processingbroad
QCEED · Horizon Europe grant · 2025-02-01–2029-01-31
EC contribution
Total cost
Beneficiaries
About the data
Source: CORDIS (official EU open data), Horizon Europe. Framework HORIZON · call HORIZON-EIC-2024-PATHFINDEROPEN-01 · scheme HORIZON-EIC · topic HORIZON-EIC-2024-PATHFINDEROPEN-01-01. CORDIS record →
Objective
The overarching objective of QCEED is to find solutions to current bottlenecks to photonic quantum information processing. “Scalable” photonic universal quantum computation exploits the measurement-based quantum computing paradigm relying on multi-dimensional photonic cluster states.However, the technological capability to generate on-demand, large-scale 2-dimensional cluster states has not yet been proven.QCEED will demonstrate the (large-scale, i.e., many photons) emission of 2-dimensional cluster states of light thanks to the development of new engineered paired semiconductor quantum dot (QD) systems, and the exploitation of advanced deep nuclei cooling and/or dynamic spin decoupling to improve system coherence time.To achieve this, one needs to deterministically design QD coupling/pairing and ultimately tailor specific molecular states/architectures (lambda like energy levels). Conventionally exploited self-assembled QD systems (e.g., SK or droplet epitaxy QD systems) are in general not suited for the task. QCEED will attack the issue with a twin-track approach and demonstrate the advantage of MOVPE site-controlled (In)GaAs pyramidal QDs and CBE InAsP nanowire QDs. QCEED will also tackle the essential requirement for scalable quantum computation -that is to efficiently funnel the generated photons into specific photonic modes- by implementing tailored tapered wave-guiding designs and broadband optical cavities with relatively high Purcell factors. QCEED brings together 7 partners from 5 countries which combined possess all the complementary expertise necessary to fulfil the ambitious objectives and to prepare a post-project sustainability and exploitability plan.The combined effort will result in a new scalable platform of semiconductor sources of multidimensional cluster states for efficient quantum information processing. If successful, large scale, on chip, quantum photonic computation will be a significantly closer certainty
Beneficiaries (7)
| Organisation | Country | Role | EC contribution | SME |
|---|---|---|---|---|
| UNIVERSITY COLLEGE CORK - NATIONAL UNIVERSITY OF IRELAND, CORK | IE | coordinator | €859,179 | |
| CONSIGLIO NAZIONALE DELLE RICERCHE | IT | participant | €669,074 | |
| POLITECHNIKA WROCLAWSKA | PL | participant | €512,500 | |
| COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES | FR | participant | €491,158 | |
| III-V LAB | FR | participant | €201,270 | |
| Masarykova univerzita | CZ | participant | €198,750 | |
| DAY ONE SOCIETA A RESPONSABILITA LIMITATA | IT | participant | €81,250 | Yes |
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