Project description
Entangling a superconducting qubit and a magnet in a magnetic insulator
Quantum magnonics is an emerging area of research focused on magnons, quasi-particles that can carry spin at distances on the order of centimetres very quickly. Magnons are the quasi-particle equivalent of spin waves, propagating changes in electron spin alignments in magnetic materials. The European Research Council-funded QUMIN project will build on recent developments in the fields of spintronics, circuit quantum electrodynamics and superconducting quantum computing to create hybrid magnon/photon and magnon/qubit quantum states. The team will manipulate and control their joint coherence with the goal of entangling a superconducting qubit and a magnet. The magnetic insulator yttrium iron garnet will play an essential role in the project’s success.
Objective
In the QUMIN proposal we will build on recent developments in spintronics, circuit quantum electrodynamics and superconducting quantum computing in order to advance the fledgling research field of quantum magnonics. We will employ micro-scale magnonic resonators fabricated from YIG thin films and planar superconducting microwave resonators and superconducting transmon qubits. The combination of these basic elements will enable us to create hybrid magnon/photon and magnon/qubit quantum states and probe and control their joint coherence. An end goal of the project is to controllably entangle a superconducting qubit and a magnet.
The concept of circuit quantum electrodynamics, developed in superconducting quantum computing, has enabled strong light-matter coupling at microwave frequencies and has been one of the driving forces behind the advances in quantum computing. Over the same time frame there has been an intense development of microwave spintronics partly motivated by the discovery of spin-transfer torque and spin pumping. Most recently, motivated by its exceptional magnetic properties, there has been a renaissance of research in magnetic insulator YIG. Initial experiments show strong coupling between electromagnetic resonators and magnetic resonators. But this is just the start and a wide variety of increasingly sophisticated experiments are to follow.
An important aspect of our proposal is to use the non-uniform modes of micro-scale magnonic resonators, enabling experiments close to or at zero magnetic field to ensure compatibility with superconducting qubits. Furthermore we place an emphasis on the use of microwave spintronic techniques, using the spin-Hall effect in order to control and measure the magnonic resonator. As well as exploring this new quantum magnonics avenue, our proposal will further understanding into the room-temperature magnetic phenomena that make YIG an essential material for microwave electronics.
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.
- natural sciences physical sciences electromagnetism and electronics electromagnetism
- natural sciences physical sciences electromagnetism and electronics spintronics
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering computer hardware quantum computers
- natural sciences physical sciences electromagnetism and electronics superconductivity
- natural sciences physical sciences theoretical physics particle physics photons
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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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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.
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2014-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.
CB2 1TN CAMBRIDGE
United Kingdom
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