Witnessing quantum correlations in a nuclear ensemble via an electron spin qubit

Autor: Daniel M. Jackson, Leon Zaporski, J. H. Bodey, Claire Le Gall, Maxime Hugues, Clara Bachorz, Dorian Gangloff, Gabriel Ethier-Majcher, Edmund Clarke, Constantin Lang, Mete Atatüre

Publikováno v: Nature Physics. 17:1247-1253

A coherent ensemble of spins interfaced with a proxy qubit is an attractive platform to create many-body coherences and probe the regime of collective excitations. An electron spin qubit in a semiconductor quantum dot can act as such an interface to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b4160b4414c42df78fb894c4871f8d5
https://doi.org/10.1038/s41567-021-01344-7

Optical spin locking of a solid-state qubit

Autor: Edmund Clarke, Emil Vosmar Denning, Gabriel Ethier-Majcher, Robert Stockill, Mete Atatüre, Dorian Gangloff, Maxime Hugues, C. Le Gall, J. H. Bodey, Daniel M. Jackson

Publikováno v: npj Quantum Information, Vol 5, Iss 1, Pp 1-6 (2019)
Bodey, J H, Stockill, R, Denning, E V, Gangloff, D A, Éthier-Majcher, G, Jackson, D M, Clarke, E, Hugues, M, Gall, C L & Atatüre, M 2019, ' Optical spin locking of a solid-state qubit ', npj Quantum Information, vol. 5, no. 1, 95 . https://doi.org/10.1038/s41534-019-0206-3
npj Quantum Information
npj Quantum Information, Nature, 2019, 5 (1), ⟨10.1038/s41534-019-0206-3⟩

Quantum control of solid-state spin qubits typically involves pulses in the microwave domain, drawing from the well-developed toolbox of magnetic resonance spectroscopy. Driving a solid-state spin by optical means offers a high-speed alternative, whi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26f591013fcb79c0c24dac5f301d7536
http://link.springer.com/article/10.1038/s41534-019-0206-3

Quantum sensing of a coherent single spin excitation in a nuclear ensemble

Autor: Mete Atatüre, Leon Zaporski, Maxime Hugues, Daniel M. Jackson, C. Le Gall, Clara Bachorz, Edmund Clarke, Dorian Gangloff, J. H. Bodey

Publikováno v: Nature Physics
Nature Physics, Nature Publishing Group, 2021, 17 (5), pp.585-590. ⟨10.1038/s41567-020-01161-4⟩

Accessing an ensemble of coherently interacting objects at the level of single quanta via a proxy qubit is transformative in the investigations of emergent quantum phenomena. An isolated nuclear spin ensemble is a remarkable platform owing to its coh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b288c55748b67f89a65cee5b58edc6b

Collective quantum memory activated by a driven central spin

Autor: Mete Atatüre, Claire Le Gall, Jesper Mørk, Dorian Gangloff, Emil Vosmar Denning

Publikováno v: Denning, E V, Gangloff, D A, Atatüre, M, Mørk, J & Le Gall, C 2019, ' Collective Quantum Memory Activated by a Driven Central Spin ', Physical Review Letters, vol. 123, no. 14, 140502 . https://doi.org/10.1103/physrevlett.123.140502

Coupling a qubit coherently to an ensemble is the basis for collective quantum memories. A single driven electron in a quantum dot can deterministically excite low-energy collective modes of a nuclear spin ensemble in the presence of lattice strain.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3f2dd2bc13ca60d7139997481dd3439
http://arxiv.org/abs/1904.11180

Coherent excitation of a spin wave in an optically cooled nuclear ensemble

Autor: Gabriel Ethier-Majcher, Mete Atatüre, J. H. Bodey, Daniel M. Jackson, Constantin Lang, Emil Vosmar Denning, Dorian Gangloff, C. Le Gall

Publikováno v: Quantum Information and Measurement (QIM) V: Quantum Technologies.

We implement an all-optical access to the quantized electronic-nuclear spin transitions in a semiconductor quantum dot, and we perform coherent rotations of a collective nuclear spin excitation corresponding to a spin-wave called a nuclear magnon.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b37946d349fb10c0f6fd9204e91b2a3
https://doi.org/10.1364/qim.2019.f4c.5