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Hybrid Epitaxial Materials for Novel Quantum State Detection and Manipulation

Objective

Research in quantum information technologies is receiving increasing attention worldwide, and huge efforts are put into the realization of the first reliable building blocks for quantum computation. The main challenge the field is facing today is unquestionably related to the loss of information due to quantum state decoherence. As indicated by our recent experiments, the perennial problem of decoherence might be solved by fully epitaxial semiconductor-superconductor growth techniques of high quality topological superconducting materials. Moreover, quantum systems based around design principles such as gate-controlled semiconductor-superconductor materials that can hold topologically‐motivated symmetry protection, might enable simpler forms of control and less dependence on available control technology.

While research has made a lot of progress in the growth of semiconductor heterostructures and associated interfaces, the synthesis of semiconductor – metal/superconductor interfaces are comparably both uncontrolled and very poorly understood. As the device performance and potential applicability of nanostructured crystals largely depend on the quality of the involved interfaces, progress in synthesis of high quality interfaces will likely dictate the advancement and development not only of future quantum electronics but also play a key role in nanostructured device applications in general.

The core of this proposal concerns the material synthesis of epitaxially grown semiconductor - metal/superconductor materials for advanced topological quantum electronics. The ambition will be to build an innovative environment that links between material and quantum sciences - with an overall emphasis on developing disorder-free hybrid semiconductor-superconductor crystals for novel quantum state detection and manipulation. This also includes an emphasis on developing high quality Josephson junctions - the key control point and crucial element in gatable superconductivity.
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Host institution

KOBENHAVNS UNIVERSITET

Address

Norregade 10
1165 Kobenhavn

Denmark

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 339 600

Beneficiaries (1)

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KOBENHAVNS UNIVERSITET

Denmark

EU Contribution

€ 1 339 600

Project information

Grant agreement ID: 716655

Status

Ongoing project

  • Start date

    1 August 2017

  • End date

    31 July 2022

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 339 600

  • EU contribution

    € 1 339 600

Hosted by:

KOBENHAVNS UNIVERSITET

Denmark