Macroscopic quantum dynamics and coherence in hybrid superconducting circuits for quantum computation

Objective

In recent years many designs have been demonstrated for quantum bits (qubits) based on the Josephson effect in low critical temperature superconductors. The use of such technology appears to be a natural choice since superconductors offer both the scalability, typical of solid state technology, and the properties of a macroscopic quantum system. The results on such qubits to date, though in many respects quite impressive, still need improvements to achieve the level of performance required for quantum computation. The main issue when dealing with qubits is to reduce possible sources of decoherence that would be detrimental to its performances. A big effort has been made by many groups to understand the effect of materials and fabrication on decoherence times and to explore the potential of hybrid devices. The main aim of this proposal is to demonstrate the feasibility of a qubit of sufficient quality to form the building blocks of a quantum information technology partly based on Josephson effect in high Tc superconductors. The specific configurations we intend to explore may offer atomically flat barriers with advantages in terms of reduced noise and “quitness”, which may also benefit of intrinsic quantum protection of High Tc systems. The team will focus toward chip design and circuit implementation and filtering to improve the qubit isolation from external sources of noise and decoherence. A spectroscopic approach will be implemented to study the intrinsic effects of materials and fabrication process on the decoherence time.

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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.

• natural sciences physical sciences quantum physics
• engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering computer hardware quantum computers
• natural sciences physical sciences electromagnetism and electronics superconductivity

Programme(s)

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

• FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

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.

• FP7-PEOPLE-2009-RG - Marie Curie Action: "Reintegration Grants"

Call for proposal

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

FP7-PEOPLE-2009-RG
See other projects for this call

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.

MC-IRG - International Re-integration Grants (IRG)

Coordinator