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Steady state entanglement with superconducting qubits

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 tha... ver más

31/08/2018

CHALMERS TEKNISKA...

100K€

Presupuesto del proyecto: 100K€

Líder del proyecto

CHALMERS TEKNISKA HOGSKOLA AB No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2018-08-31 No tenemos la información de la convocatoria

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CHALMERS TEKNISKA HOGSKOLA A...

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Líder del proyecto

CHALMERS TEKNISKA HOGSKOLA AB No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 100K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto 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.

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