Skip to main content
Go to the home page of the European Commission (opens in new window)
English English
CORDIS - EU research results
CORDIS

Multidimensional Hyperentangled Photon Graph States: Creation, Validation and Application

Objective

At the heart of quantum physics and quantum technology lies the captivating phenomenon of entanglement, which society hopes to profit from in improved and completely novel technical applications within the second quantum revolution.

Entangled quantum states are extremely difficult to create and validate; only 50 years ago entangled states were shown to violate Bell’s inequalities, using two entangled quantized states of electromagnetic radiation, known as single photon states. For this achievement the 2022 Nobel Prize in Physics was awarded.

Ever since, entangled states have driven fundamental and applied research. Intriguingly, entanglement can theoretically be created between an arbitrary number of photons. Their creation, however, has been very challenging, and over the past years, the size of one-dimensional entangled photon states has been increased to 14 in 2022. The slow progress is mainly limited by the development of deterministic single photon sources.

Recently, I have designed a novel spin-photon interface in diamond with record-high emitter to detector efficiencies theoretically exceeding 99% and realistically reaching 90%. These record efficiencies are enabled by the Sawfish interface. Multiplexing of several of such interfaces will enable the creation of large 2D and even 3D photon graph states.

These states will be so complex, that new theoretical models are required for their understanding. The usage of states whose density matrix could never be computed on classical computers is indeed a conceptual problem in theory. In this regime, HyperGraph’s experimental research will stimulate concepts and new discoveries in theory. Moreover, because of the many degrees of interconnection between the individual qubits, I expect innovative concepts for error correction, novel and possibly improved protocols in fault tolerant quantum information processing, and even completely new application cases to be developed in parallel and beyond HyperGraph.

Fields of science (EuroSciVoc)

CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.

You need to log in or register to use this function

Programme(s)

Multi-annual funding programmes that define the EU’s priorities for research and innovation.

Topic(s)

Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.

Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

HORIZON-ERC - HORIZON ERC Grants

See all projects funded under this funding scheme

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) ERC-2024-COG

See all projects funded under this call

Host institution

HUMBOLDT-UNIVERSITAET ZU BERLIN
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 2 515 938,00
Address
UNTER DEN LINDEN 6
10117 Berlin
Germany

See on map

Region
Berlin Berlin Berlin
Activity type
Higher or Secondary Education Establishments
Links
Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 2 515 938,00

Beneficiaries (1)

My booklet 0 0