CORDIS
EU research results

CORDIS

English EN

Quantum Local Area Networks with Superconducting Qubits

Project information

Grant agreement ID: 899354

Status

Grant agreement signed

  • Start date

    1 September 2020

  • End date

    31 August 2023

Funded under:

H2020-EU.1.2.1.

  • Overall budget:

    € 2 995 403,75

  • EU contribution

    € 2 995 403,75

Coordinated by:

TECHNISCHE UNIVERSITAET WIEN

Austria

Objective

Superconducting quantum circuits are one of the most promising platforms for realizing large-scale quantum computing devices, where in the near future a coherent integration of 100-1000 qubits is feasible. However, the required temperatures of only a few mK currently restrict quantum operations to superconducting qubits that are located within the same dilution refrigerator. This imposes a serious constraint on the realization of even larger quantum processors or the implementation of local- and wide-area quantum networks based on superconducting technology.

The targeted breakthrough of this project is to overcome this limitation by demonstrating for the first time the operation of a quantum local area network (QuLAN), where superconducting qubits housed in spatially separated refrigerators are connected via a cryogenic transmission line. Using this setup, we will implement state transfer protocols and distributed quantum algorithms between superconducting qubits that are tens of meters apart. In parallel, we will develop and demonstrate new electro-optical quantum transducer designs for fast microwave-to-optics conversion and many other essential components and protocols for efficiently integrating multiple superconducting quantum computing units into a single coherent network. The outcomes of this project will enable the non-incremental step from intra- to inter-fridge quantum communication and will facilitate the implementation of first quantum computing clusters. In the long run, this technology provides the basis for the realization of metropolitan-area scale quantum networks using superconducting circuits.

The project will be carried out by an interdisciplinary team of experts in the fields of superconducting circuits, nanophotonics and quantum information theory, and in close collaboration with industry partners. The complementary expertise of this consortium will ensure the scientific and economic success of this project.

Coordinator

TECHNISCHE UNIVERSITAET WIEN

Address

Karlsplatz 13
1040 Wien

Austria

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 555 000

Participants (5)

AGENCIA ESTATAL CONSEJO SUPERIOR DEINVESTIGACIONES CIENTIFICAS

Spain

EU Contribution

€ 393 778,75

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH

Switzerland

EU Contribution

€ 942 500

INSTITUTE OF SCIENCE AND TECHNOLOGY AUSTRIA

Austria

EU Contribution

€ 388 125

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV

Germany

EU Contribution

€ 312 500

ZURICH INSTRUMENTS AG

Switzerland

EU Contribution

€ 403 500

Project information

Grant agreement ID: 899354

Status

Grant agreement signed

  • Start date

    1 September 2020

  • End date

    31 August 2023

Funded under:

H2020-EU.1.2.1.

  • Overall budget:

    € 2 995 403,75

  • EU contribution

    € 2 995 403,75

Coordinated by:

TECHNISCHE UNIVERSITAET WIEN

Austria