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Layered semiconductors and hybrid systems for quantum optics and opto-valleytronics

Objective

A new resource for quantum information processing has emerged recently in the form of the valley pseudospin in layered transition metal dichalcogenides. By virtue of strong spin-orbit and Berry curvature effects, these non-centrosymmetric crystals provide a quantum optical interface between spin- and valley-polarized electrons and circularly polarized photons. Such valley-contrasting optical selection rules in turn establish means to address the multivalley quantum resource all-optically. At this interface, where light meets valley quantum states of matter, the proposed research will aim at tailoring and mastering electron-hole-pair excitations and their coupling to photons in layered transition metal dichalcogenide semiconductors, heterostructures and hybrid systems. The project will combine semiconductor monolayers with ferroelectric and ferromagnetic supports to achieve synthetic opto-valleytronic functionality of substrate-modified excitons for the development of novel linear, non-linear and chiral quantum optical elements. Reciprocally, interfacial effect of the substrate on the valley dynamics of monolayer excitons will be utilized for the development of quantum-enhanced imaging of ferroic domain textures to facilitate fundamental studies of phase transitions in condensed matter systems. In parallel, we will develop on chip-circuitry to control long-lived dipolar excitons in hetero-bilayer semiconductors. Finally, light-matter quasiparticles in the form of exciton-polaritons with weak and strong mutual interactions in monolayer- and heterobilayer-cavity systems will be created, engineered and condensed at ultra-low temperatures into a macroscopic ground state. The realization of interacting polariton gases and condensates, paired with the opto-valleytronic phenomena inherent to layered transition metal dichalcogenides, will contribute topologically protected polaritons to the realm of systems with an integral role in all-optical quantum science and technology.

Fields of science (EuroSciVoc)

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Programme(s)

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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.

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.

ERC-COG - Consolidator Grant

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Call for proposal

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

(opens in new window) ERC-2017-COG

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Host institution

LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHEN
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 1 996 291,00
Address
GESCHWISTER SCHOLL PLATZ 1
80539 MUNCHEN
Germany

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Region
Bayern Oberbayern München, Kreisfreie Stadt
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.

€ 1 996 291,00

Beneficiaries (1)

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