Nanoscale solid-state spin systems in emerging quantum technologies

Deliverables

Report on entanglement between two distant SiV-qubits
Report on NMR imaging using highly sensitive NV detectors
Report on theory for spin-orbit interaction and valley physics in Si/Ge nanostructures

Report on theory for spinorbit interaction and valley physics in SiGe nanostructures

Report on realization of entanglement of 3 quantum network nodes using spin impurities in diamond
Report on efficient circularly polarized photon generation in TMDC layers in tunable microcavities
Dissemination/Outreach activities report 2

Dissemination/Outreach activities report 2 The report will contain the results of the following activities in months 25-48: · Participation in the most significant international conferences · Publications in high impact research journals · Creation of network-specific outreach material including newsletters · Participation in outreach activities at all nodes · Participation in science exhibition(s) open to general public

Report on quantum memory lifetime >1ms under full network activity using NV impurities in diamond
Report on resonant optical electron spin manipulation in TMDC monolayers and hetersotructures
Report on scalable coupling qubit architecture in SiGe-based devices
Report on theory of spin and valley resonance in TMDC layers
Report of efficient photon extraction from individual spin impurities in diamond using tunable microcavities
Report on two-qubit gates in Si-Ge nano-structures

Report on twoqubit gates in SiGe nanostructures

Report on spin qubits in gate-tunable bilayer graphene/BN nano-structures

Report on progress towards spin qubits in gate-tunable bilayer graphene/BN nano-structures

Report on a theoretical model for optical manipulation of spins in SiV centres in diamond
Report on progress towards spin-photon interface for TMDC quantum dots
Dissemination/Outreach activities report 1

Dissemination/Outreach activities report 1 The report will contain the results of the following activities in months 1-24: · Participation in the most significant international conferences · Publications in high impact research journals · Creation of network-specific outreach material including newsletters · Participation in outreach activities at all nodes · Participation in science exhibition(s) open to general public

Supervisory Board of the network

Launch of the network’s web-site

Publications

Ultra-low power threshold for laser induced changes in optical properties of 2D molybdenum dichalcogenides

Author(s): Fabian Cadiz, Cedric Robert, Gang Wang, Wilson Kong, Xi Fan, Mark Blei, Delphine Lagarde, Maxime Gay, Marco Manca, Takashi Taniguchi, Kenji Watanabe, Thierry Amand, Xavier Marie, Pierre Renucci, Sefaattin Tongay, Bernhard Urbaszek
Published in: 2D Materials, Issue 3/4, 2016, Page(s) 045008, ISSN 2053-1583
Publisher: 2D Materials
DOI: 10.1088/2053-1583/3/4/045008

Enabling valley selective exciton scattering in monolayer WSe2 through upconversion

Author(s): M. Manca, M. M. Glazov, C. Robert, F. Cadiz, T. Taniguchi, K. Watanabe, E. Courtade, T. Amand, P. Renucci, X. Marie, G. Wang, B. Urbaszek
Published in: Nature Communications, Issue 8, 2017, Page(s) 14927, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/ncomms14927

Excitonic Linewidth Approaching the Homogeneous Limit in MoS 2 -Based van der Waals Heterostructures

Author(s): F. Cadiz, E. Courtade, C. Robert, G. Wang, Y. Shen, H. Cai, T. Taniguchi, K. Watanabe, H. Carrere, D. Lagarde, M. Manca, T. Amand, P. Renucci, S. Tongay, X. Marie, B. Urbaszek
Published in: Physical Review X, Issue 7/2, 2017, ISSN 2160-3308
Publisher: American Physical Society
DOI: 10.1103/physrevx.7.021026

Imaging of Interlayer Coupling in van der Waals Heterostructures Using a Bright-Field Optical Microscope

Author(s): Evgeny M. Alexeev, Alessandro Catanzaro, Oleksandr V. Skrypka, Pramoda K. Nayak, Seongjoon Ahn, Sangyeon Pak, Juwon Lee, Jung Inn Sohn, Kostya S. Novoselov, Hyeon Suk Shin, Alexander I. Tartakovskii
Published in: Nano Letters, Issue 17/9, 2017, Page(s) 5342-5349, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.7b01763

Synthesis of Highly Anisotropic Semiconducting GaTe Nanomaterials and Emerging Properties Enabled by Epitaxy

Author(s): Hui Cai, Bin Chen, Gang Wang, Emmanuel Soignard, Afsaneh Khosravi, Marco Manca, Xavier Marie, Shery L. Y. Chang, Bernhard Urbaszek, Sefaattin Tongay
Published in: Advanced Materials, Issue 29/8, 2017, Page(s) 1605551, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201605551

Charged excitons in monolayer WSe 2 : Experiment and theory

Author(s): E. Courtade, M. Semina, M. Manca, M. M. Glazov, C. Robert, F. Cadiz, G. Wang, T. Taniguchi, K. Watanabe, M. Pierre, W. Escoffier, E. L. Ivchenko, P. Renucci, X. Marie, T. Amand, B. Urbaszek
Published in: Physical Review B, Issue 96/8, 2017, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/PhysRevB.96.085302

Fine structure and lifetime of dark excitons in transition metal dichalcogenide monolayers

Author(s): C. Robert, T. Amand, F. Cadiz, D. Lagarde, E. Courtade, M. Manca, T. Taniguchi, K. Watanabe, B. Urbaszek, X. Marie
Published in: Physical Review B, Issue 96/15, 2017, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/PhysRevB.96.155423

Spin-degenerate regimes for single quantum dots in transition metal dichalcogenide monolayers

Author(s): Matthew Brooks, Guido Burkard
Published in: Physical Review B, Issue 95/24, 2017, ISSN 2469-9950
Publisher: American Pysical Society
DOI: 10.1103/PhysRevB.95.245411

Three-dimensional fractional topological insulators in coupled Rashba layers

Author(s): Yanick Volpez, Daniel Loss, Jelena Klinovaja
Published in: Physical Review B, Issue 96/8, 2017, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/PhysRevB.96.085422

Gate-Defined One-Dimensional Channel and Broken Symmetry States in MoS 2 van der Waals Heterostructures

Author(s): Riccardo Pisoni, Yongjin Lee, Hiske Overweg, Marius Eich, Pauline Simonet, Kenji Watanabe, Takashi Taniguchi, Roman Gorbachev, Thomas Ihn, Klaus Ensslin
Published in: Nano Letters, Issue 17/8, 2017, Page(s) 5008-5011, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.7b02186

A programmable two-qubit quantum processor in silicon

Author(s): T. F. Watson, S. G. J. Philips, E. Kawakami, D. R. Ward, P. Scarlino, M. Veldhorst, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, L. M. K. Vandersypen
Published in: Nature, 2018, ISSN 0028-0836
Publisher: Nature Publishing Group
DOI: 10.1038/nature25766

Realization of an Electrically Tunable Narrow-Bandwidth Atomically Thin Mirror Using Monolayer MoSe 2

Author(s): Patrick Back, Sina Zeytinoglu, Aroosa Ijaz, Martin Kroner, Atac Imamoğlu
Published in: Physical Review Letters, Issue 120/3, 2018, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.120.037401

Large-scale quantum-emitter arrays in atomically thin semiconductors

Author(s): Carmen Palacios-Berraquero, Dhiren M. Kara, Alejandro R.-P. Montblanch, Matteo Barbone, Pawel Latawiec, Duhee Yoon, Anna K. Ott, Marko Loncar, Andrea C. Ferrari, Mete Atatüre
Published in: Nature Communications, Issue 8, 2017, Page(s) 15093, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/ncomms15093

Anomalous Coulomb drag between bilayer graphene and a GaAs electron gas

Author(s): Pauline Simonet, Szymon Hennel, Hiske Overweg, Richard Steinacher, Marius Eich, Riccardo Pisoni, Yongjin Lee, Peter Märki, Thomas Ihn, Klaus Ensslin, Mattias Beck, Jérôme Faist
Published in: New Journal of Physics, Issue 19/10, 2017, Page(s) 103042, ISSN 1367-2630
Publisher: Institute of Physics Publishing
DOI: 10.1088/1367-2630/aa887e

Electrically tunable dynamic nuclear spin polarization in GaAs quantum dots at zero magnetic field

Author(s): M. Manca, G. Wang, T. Kuroda, S. Shree, A. Balocchi, P. Renucci, X. Marie, M. V. Durnev, M. M. Glazov, K. Sakoda, T. Mano, T. Amand, B. Urbaszek
Published in: Applied Physics Letters, Issue 112/14, 2018, Page(s) 142103, ISSN 0003-6951
Publisher: American Institute of Physics
DOI: 10.1063/1.5024619

Edge channel confinement in a bilayer graphene n–p–n quantum dot

Author(s): Hiske Overweg, Peter Rickhaus, Marius Eich, Yongjin Lee, Riccardo Pisoni, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn, Klaus Ensslin
Published in: New Journal of Physics, Issue 20/1, 2018, Page(s) 013013, ISSN 1367-2630
Publisher: Institute of Physics Publishing
DOI: 10.1088/1367-2630/aa9cd3

Gate-tunable quantum dot in a high quality single layer MoS2 van der Waals heterostructure

Author(s): Riccardo Pisoni, Zijin Lei, Patrick Back, Marius Eich, Hiske Overweg, Yongjin Lee, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn, Klaus Ensslin
Published in: Applied Physics Letters, Issue 112/12, 2018, Page(s) 123101, ISSN 0003-6951
Publisher: American Institute of Physics
DOI: 10.1063/1.5021113

Spin and Valley States in Gate-Defined Bilayer Graphene Quantum Dots

Author(s): Marius Eich, Riccardo Pisoni, Hiske Overweg, Annika Kurzmann, Yongjin Lee, Peter Rickhaus, Thomas Ihn, Klaus Ensslin, František Herman, Manfred Sigrist, Kenji Watanabe, Takashi Taniguchi
Published in: Physical Review X, Issue 8/3, 2018, ISSN 2160-3308
Publisher: American Physical Society
DOI: 10.1103/physrevx.8.031023

Theory of strain-induced confinement in transition metal dichalcogenide monolayers

Author(s): Matthew Brooks, Guido Burkard
Published in: Physical Review B, Issue 97/19, 2018, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/physrevb.97.195454

Rashba sandwiches with topological superconducting phases

Author(s): Yanick Volpez, Daniel Loss, Jelena Klinovaja
Published in: Physical Review B, Issue 97/19, 2018, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/physrevb.97.195421

Optical spectroscopy of excited exciton states in MoS 2 monolayers in van der Waals heterostructures

Author(s): C. Robert, M. A. Semina, F. Cadiz, M. Manca, E. Courtade, T. Taniguchi, K. Watanabe, H. Cai, S. Tongay, B. Lassagne, P. Renucci, T. Amand, X. Marie, M. M. Glazov, B. Urbaszek
Published in: Physical Review Materials, Issue 2/1, 2018, ISSN 2475-9953
Publisher: American Physical Society
DOI: 10.1103/physrevmaterials.2.011001

Observation of exciton-phonon coupling in MoSe 2 monolayers

Author(s): S. Shree, M. Semina, C. Robert, B. Han, T. Amand, A. Balocchi, M. Manca, E. Courtade, X. Marie, T. Taniguchi, K. Watanabe, M. M. Glazov, B. Urbaszek
Published in: Physical Review B, Issue 98/3, 2018, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/physrevb.98.035302

Exciton diffusion in WSe 2 monolayers embedded in a van der Waals heterostructure

Author(s): F. Cadiz, C. Robert, E. Courtade, M. Manca, L. Martinelli, T. Taniguchi, K. Watanabe, T. Amand, A. C. H. Rowe, D. Paget, B. Urbaszek, X. Marie
Published in: Applied Physics Letters, Issue 112/15, 2018, Page(s) 152106, ISSN 0003-6951
Publisher: American Institute of Physics
DOI: 10.1063/1.5026478

Exciton States in Monolayer MoSe 2 and MoTe

Author(s): B. Han, C. Robert, E. Courtade, M. Manca, S. Shree, T. Amand, P. Renucci, T. Taniguchi, K. Watanabe, X. Marie, L. E. Golub, M. M. Glazov, B. Urbaszek
Published in: Physical Review X, Issue 8/3, 2018, ISSN 2160-3308
Publisher: American Physical Society
DOI: 10.1103/physrevx.8.031073

Valley coherent exciton-polaritons in a monolayer semiconductor

Author(s): S. Dufferwiel, T. P. Lyons, D. D. Solnyshkov, A. A. P. Trichet, A. Catanzaro, F. Withers, G. Malpuech, J. M. Smith, K. S. Novoselov, M. S. Skolnick, D. N. Krizhanovskii, A. I. Tartakovskii
Published in: Nature Communications, Issue 9/1, 2018, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-018-07249-z

Charge-tuneable biexciton complexes in monolayer WSe2

Author(s): Matteo Barbone, Alejandro R.-P. Montblanch, Dhiren M. Kara, Carmen Palacios-Berraquero, Alisson R. Cadore, Domenico De Fazio, Benjamin Pingault, Elaheh Mostaani, Han Li, Bin Chen, Kenji Watanabe, Takashi Taniguchi, Sefaattin Tongay, Gang Wang, Andrea C. Ferrari, Mete Atatüre
Published in: Nature Communications, Issue 9/1, 2018, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-018-05632-4

The valley Zeeman effect in inter- and intra-valley trions in monolayer WSe2

Author(s): T. P. Lyons, S. Dufferwiel, M. Brooks, F. Withers, T. Taniguchi, K. Watanabe, K. S. Novoselov, G. Burkard, A. I. Tartakovskii
Published in: Nature Communications, Issue 10/1, 2019, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-019-10228-7

Second-Order Topological Superconductivity in π -Junction Rashba Layers

Author(s): Yanick Volpez, Daniel Loss, Jelena Klinovaja
Published in: Physical Review Letters, Issue 122/12, 2019, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.122.126402

Comparative study of dielectric coating materials for micro-cavity applications

Author(s): Najwa Sidqi, Caspar Clark, Gerald S. Buller, Gopala Krishna V. V. Thalluri, Jevgenij Mitrofanov, Yoann Noblet
Published in: Optical Materials Express, Issue 9/8, 2019, Page(s) 3452, ISSN 2159-3930
Publisher: Optical Society of America
DOI: 10.1364/ome.9.003452

Optomechanical Measurement of Thermal Transport in Two-Dimensional MoSe 2 Lattices

Author(s): Nicolas Morell, Slaven Tepsic, Antoine Reserbat-Plantey, Andrea Cepellotti, Marco Manca, Itai Epstein, Andreas Isacsson, Xavier Marie, Francesco Mauri, Adrian Bachtold
Published in: Nano Letters, Issue 19/5, 2019, Page(s) 3143-3150, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.9b00560

Absence of Interlayer Tunnel Coupling of K -Valley Electrons in Bilayer MoS 2

Author(s): Riccardo Pisoni, Tim Davatz, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn, Klaus Ensslin
Published in: Physical Review Letters, Issue 123/11, 2019, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/PhysRevLett.123.117702

Interactions and Magnetotransport through Spin-Valley Coupled Landau Levels in Monolayer MoS 2

Author(s): Riccardo Pisoni, Andor Kormányos, Matthew Brooks, Zijin Lei, Patrick Back, Marius Eich, Hiske Overweg, Yongjin Lee, Peter Rickhaus, Kenji Watanabe, Takashi Taniguchi, Atac Imamoglu, Guido Burkard, Thomas Ihn, Klaus Ensslin
Published in: Physical Review Letters, Issue 121/24, 2018, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/PhysRevLett.121.247701

Enhanced light-matter interaction in an atomically thin semiconductor coupled with dielectric nano-antennas

Author(s): L. Sortino, P. G. Zotev, S. Mignuzzi, J. Cambiasso, D. Schmidt, A. Genco, M. Aßmann, M. Bayer, S. A. Maier, R. Sapienza, A. I. Tartakovskii
Published in: Nature Communications, Issue 10/1, 2019, ISSN 2041-1723
Publisher: Nature Publishing Group
DOI: 10.1038/s41467-019-12963-3

Cavity-Enhanced Raman Scattering for In Situ Alignment and Characterization of Solid-State Microcavities

Author(s): Daniel Riedel, Sigurd Flågan, Patrick Maletinsky, Richard J. Warburton
Published in: Physical Review Applied, Issue 13/1, 2020, ISSN 2331-7019
Publisher: Physical Review Applied
DOI: 10.1103/physrevapplied.13.014036

Excited States in Bilayer Graphene Quantum Dots

Author(s): A. Kurzmann, M. Eich, H. Overweg, M. Mangold, F. Herman, P. Rickhaus, R. Pisoni, Y. Lee, R. Garreis, C. Tong, K. Watanabe, T. Taniguchi, K. Ensslin, T. Ihn
Published in: Physical Review Letters, Issue 123/2, 2019, ISSN 0031-9007
Publisher: American Physical Society
DOI: 10.1103/physrevlett.123.026803

Electric dipole spin resonance of two-dimensional semiconductor spin qubits

Author(s): Matthew Brooks, Guido Burkard
Published in: Physical Review B, Issue 101/3, 2020, ISSN 2469-9950
Publisher: American Physical Society
DOI: 10.1103/physrevb.101.035204

Coupled Quantum Dots in Bilayer Graphene

Author(s): Marius Eich, Riccardo Pisoni, Alessia Pally, Hiske Overweg, Annika Kurzmann, Yongjin Lee, Peter Rickhaus, Kenji Watanabe, Takashi Taniguchi, Klaus Ensslin, Thomas Ihn
Published in: Nano Letters, Issue 18/8, 2018, Page(s) 5042-5048, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.8b01859

Charge Detection in Gate-Defined Bilayer Graphene Quantum Dots

Author(s): Annika Kurzmann, Hiske Overweg, Marius Eich, Alessia Pally, Peter Rickhaus, Riccardo Pisoni, Yongjin Lee, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn, Klaus Ensslin
Published in: Nano Letters, Issue 19/8, 2019, Page(s) 5216-5221, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.9b01617

Fast Charge Sensing of Si/SiGe Quantum Dots via a High-Frequency Accumulation Gate

Author(s): Christian Volk, Anasua Chatterjee, Fabio Ansaloni, Charles M. Marcus, Ferdinand Kuemmeth
Published in: Nano Letters, Issue 19/8, 2019, Page(s) 5628-5633, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.9b02149

Low-dimensional emissive states in non-stoichiometric methylammonium lead halide perovskites

Author(s): Benjamin G. Freestone, Joel A. Smith, Giacomo Piana, Rachel C. Kilbride, Andrew J. Parnell, Luca Sortino, David M. Coles, Orianna B. Ball, Natalia Martsinovich, Courtney J. Thompson, Tarek I. Alanazi, Onkar S. Game, Alexander I. Tartakovskii, Pavlos Lagoudakis, David G. Lidzey
Published in: Journal of Materials Chemistry A, Issue 7/18, 2019, Page(s) 11104-11116, ISSN 2050-7488
Publisher: Royal Society of Chemistry
DOI: 10.1039/c8ta12184b

A link layer protocol for quantum networks

Author(s): Axel Dahlberg, Julio de Oliveira Filho, Ronald Hanson, Stephanie Wehner, Matthew Skrzypczyk, Tim Coopmans, Leon Wubben, Filip Rozpędek, Matteo Pompili, Arian Stolk, Przemysław Pawełczak, Robert Knegjens
Published in: Proceedings of the ACM Special Interest Group on Data Communication - SIGCOMM '19, 2019, Page(s) 159-173, ISBN 9781-450359566
Publisher: ACM Press
DOI: 10.1145/3341302.3342070

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