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Content archived on 2024-06-18

Steady-state entanglement with superconducting qubits

Objective

Quantum entanglement is the key resource that makes quantum information-processing machines more powerful than classical ones. In this project in quantum-mechanical engineering with superconducting qubits – electronic circuits that are engineered “artificial atoms” – I will create quantum-entangled steady states that never decay, as long as the qubits are subject to external microwave drive fields. I will do this by designing the driving protocol and the qubits’ dissipative environment – “quantum bath engineering” – in a circuit-QED architecture with carefully designed qubit-resonator couplings and resonator loss rate. The dominating transition rate can then act to prepare the system, rapidly and with high fidelity, in the desired singlet as a steady state of the dissipative time evolution. This is a new concept: only very few related experiments have been done with other physical systems, and none with superconducting qubits. Compared to the standard way of preparing entangled states – by one- and two-qubit unitary gate operations – this scheme has several advantages, chiefly the resilience to energy relaxation of the qubits because the induced transitions and the relaxation processes bring the system back to the desired state.

I already have preliminary and promising results in this project, and good international collaborations. The excellent infrastructure and great environment at Chalmers University will help me succeed, which in turn will ensure my integration into the European research community.

This research field is internationally very competitive, in particular as superconducting qubits are emerging as the perhaps most viable type of system to base future quantum computers and quantum simulators on. It should therefore be a strategic interest for the EU to continue being on the forefront in quantum technologies.

Fields of science (EuroSciVoc)

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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.

Call for proposal

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

FP7-PEOPLE-2013-CIG
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-CIG - Support for training and career development of researcher (CIG)

Coordinator

CHALMERS TEKNISKA HOGSKOLA AB
EU contribution
€ 100 000,00
Address
-
412 96 Goteborg
Sweden

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Region
Södra Sverige Västsverige Västra Götalands län
Activity type
Higher or Secondary Education Establishments
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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.

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