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2D4QT

2D Materials for Quantum Technology

CoordinatorRWTH Aachen University
Grant period2019-09-01 - 2024-08-31
Funding bodyEuropean Union
Call numberERC-2018-COG
Grant number820254
IdentifierG:(EU-Grant)820254

Note: Since its discovery, graphene has been indicated as a promising platform for quantum technologies (QT). The number of theoretical proposal dedicated to this vision has grown steadily, exploring a wide range of directions, ranging from spin and valley qubits, to topologically-protected states. The experimental confirmation of these ideas lagged so far significantly behind, mostly because of material quality problems. The quality of graphene-based devices has however improved dramatically in the past five years, thanks to the advent of the so-called van der Waals (vdW) heteostructures - artificial solids formed by mechanically stacking layers of different two dimensional (2D) materials, such as graphene, hexagonal boron nitride and transition metal dichalcogenides. These new advances open now finally the door to put several of those theoretical proposals to test. The goal of this project is to assess experimentally the potential of graphene-based heterostructures for QT applications. Specifically, I will push the development of an advanced technological platform for vdW heterostructures, which will allow to give quantitative answers to the following open questions: i) what are the relaxation and coherence times of spin and valley qubits in isotopically purified bilayer graphene (BLG); ii) what is the efficiency of a Cooper-pair splitter based on BLG; and iii) what are the characteristic energy scales of topologically protected quantum states engineered in graphene-based heterostructures. At the end of this project, I aim at being in the position of saying whether graphene is the horse-worth-betting-on predicted by theory, or whether it still hides surprises in terms of fundamental physics. The technological advancements developed in this project for integrating nanostructured layers into vdW heterostructures will reach even beyond this goal, opening the door to new research directions and possible applications.
     

Recent Publications

All known publications ...
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Role of antisymmetric orbitals and electron-electron interactions on the two-particle spin and valley blockade in graphene double quantum dots
Physical review / B 111(16), 165416 () [10.1103/PhysRevB.111.165416] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Gate-Defined Single-Electron Transistors in Twisted Bilayer Graphene
Nano letters 25(16), 6429 - 6437 () [10.1021/acs.nanolett.4c06492] Embargoed OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Benchmarking the integration of hexagonal boron nitride crystals and thin films into graphene-based van der Waals heterostructures
2D Materials 12(1), 015017 - () [10.1088/2053-1583/ad96c9] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Phonon-limited valley lifetimes in single-particle bilayer graphene quantum dots
Physical review / B 112(3), 035409 () [10.1103/dkgn-pfjb] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Electric-Field-Tunable Spin–Orbit Gap in a Bilayer Graphene/WSe 2 Quantum Dot
Nano letters 25(26), 10549 - 10555 () [10.1021/acs.nanolett.5c02229] BibTeX | EndNote: XML, Text | RIS

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Terahertz photocurrent probe of quantum geometry and interactions in magic-angle twisted bilayer graphene
Nature materials 24(7), 1034 - 1041 () [10.1038/s41563-025-02180-3] BibTeX | EndNote: XML, Text | RIS

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Negative electronic compressibility in charge islands in twisted bilayer graphene
Physical review / B 109(15), 155430 () [10.1103/PhysRevB.109.155430] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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An open-source robust machine learning platform for real-time detection and classification of 2D material flakes
Machine learning: science and technology 5(1), 015027 - () [10.1088/2632-2153/ad2287] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Coherent charge oscillations in a bilayer graphene double quantum dot
Nature Communications 14(1), 7911 () [10.1038/s41467-023-43541-3] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

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Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions
Physical review applied 20(5), 054049 () [10.1103/PhysRevApplied.20.054049] OpenAccess  Download fulltext Files BibTeX | EndNote: XML, Text | RIS

All known publications ...
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 Datensatz erzeugt am 2020-01-06, letzte Änderung am 2023-02-13
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