Quantum modulation of a coherent state with a single electron spin

P. Androvitsaneas; A. B. Young; T. Nutz; J. M. Lennon; S. Mister; C. Schneider; M. Kamp; S. Höfling; D. P.S. McCutcheon; E. Harbord; J. G. Rarity; R. Oulton

doi:10.1103/PhysRevResearch.6.023276

Quantum modulation of a coherent state with a single electron spin

P. Androvitsaneas, A. B. Young, T. Nutz, J. M. Lennon, S. Mister, C. Schneider, M. Kamp, S. Höfling, D. P.S. McCutcheon, E. Harbord, J. G. Rarity, R. Oulton

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Abstract

The interaction of quantum objects lies at the heart of fundamental quantum physics and is key to a wide range of quantum information technologies. Photon-quantum-emitter interactions are among the most widely studied. Two-qubit interactions are generally simplified into two quantum objects in static well-defined states. In this work we explore a fundamentally new dynamic type of spin-photon interaction. We demonstrate the modulation of a coherent narrowband laser by a coherently evolving spin in the ground state of a quantum dot. What results is a quantum modulation of the output phase (either 0 or π but no values in between), and a new quantum state of light that cannot be described lassically.

Original language	English
Article number	023276
Journal	Physical Review Research
Volume	6
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevResearch.6.023276
Publication status	Published - Apr 2024

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© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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abstract = "The interaction of quantum objects lies at the heart of fundamental quantum physics and is key to a wide range of quantum information technologies. Photon-quantum-emitter interactions are among the most widely studied. Two-qubit interactions are generally simplified into two quantum objects in static well-defined states. In this work we explore a fundamentally new dynamic type of spin-photon interaction. We demonstrate the modulation of a coherent narrowband laser by a coherently evolving spin in the ground state of a quantum dot. What results is a quantum modulation of the output phase (either 0 or π but no values in between), and a new quantum state of light that cannot be described lassically.",

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AU - Young, A. B.

AU - Nutz, T.

AU - Lennon, J. M.

AU - Mister, S.

AU - Schneider, C.

AU - Kamp, M.

AU - Höfling, S.

AU - McCutcheon, D. P.S.

AU - Harbord, E.

AU - Rarity, J. G.

AU - Oulton, R.

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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N2 - The interaction of quantum objects lies at the heart of fundamental quantum physics and is key to a wide range of quantum information technologies. Photon-quantum-emitter interactions are among the most widely studied. Two-qubit interactions are generally simplified into two quantum objects in static well-defined states. In this work we explore a fundamentally new dynamic type of spin-photon interaction. We demonstrate the modulation of a coherent narrowband laser by a coherently evolving spin in the ground state of a quantum dot. What results is a quantum modulation of the output phase (either 0 or π but no values in between), and a new quantum state of light that cannot be described lassically.

AB - The interaction of quantum objects lies at the heart of fundamental quantum physics and is key to a wide range of quantum information technologies. Photon-quantum-emitter interactions are among the most widely studied. Two-qubit interactions are generally simplified into two quantum objects in static well-defined states. In this work we explore a fundamentally new dynamic type of spin-photon interaction. We demonstrate the modulation of a coherent narrowband laser by a coherently evolving spin in the ground state of a quantum dot. What results is a quantum modulation of the output phase (either 0 or π but no values in between), and a new quantum state of light that cannot be described lassically.

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Quantum modulation of a coherent state with a single electron spin

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