Project description
Efficient protocols for long-distance quantum communication
In quantum communications, entangled states are considered a 'resource' – something that is costly to produce and that allows the implementation of valuable transformations. A famous resource conversion provided by the quantum teleportation protocol says we can send one qubit with the transmission of a shared entangled pair of qubits (ebit) plus two qubits of classical communication (cbits). Casting quantum protocols in such resource inequalities has proven useful since the algebraic manipulation of inequalities results in new protocols. However, this approach has hitherto been largely limited to point-to-point communication. The goal of the EU-funded RESOURCE Q project is to develop more efficient communication protocols over long distances. Another focus will be on exploiting the connection between entangled states and tensors.
Objective
This proposal explores the power of quantum information in two respects. The first is the technological power of quantum information in a communication infrastructure, and the second is its descriptive power in many-particle quantum systems. My point of departure is to view quantum information as a resource that can be processed and converted.
In quantum communication, a famous resource conversion is provided by the quantum teleportation protocol, which allows us to send one quantum bit (1 qubit) through the transmission of two classical bits (2 cbits) and the use of one entangled pair of quantum bits (1 ebit):
1 ebit + 2 cbits > 1 qubit.
Casting quantum protocols in such resource inequalities has proven useful, since the algebraic manipulation of inequalities results in new protocols, but this approach has hitherto largely been limited to point-to-point communication. It is the first goal of this project to overcome this limitation and characterise resource conversion in larger quantum networks. This will result in more efficient communication protocols that will have an impact on the use and design of quantum communication networks, which are currently being built around the globe.
A quantum network involving distant communicating labs is mirrored at the small scale by a set of interacting quantum particles. The quantum state arising from pairwise interactions can be strongly entangled, with an underlying entanglement structure given by a graph with entangled pairs along the edges. There is a surprising and close connection between such entanglement structures and tensor research in the context of algebraic complexity theory. The second goal of the project is to exploit this connection and characterise the resource conversion of entanglement structures. The research will lead to more efficient tensor network representations of many-particle quantum states, and to progress on the computational complexity of matrix multiplication, a long-standing unsolved problem.
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.
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.
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering computer hardware quantum computers
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
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Topic(s)
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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.
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.
ERC-COG - Consolidator Grant
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2018-COG
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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.
1165 KOBENHAVN
Denmark
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.