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arXiv · 2207.05596

Quantum modulation of a coherent state wavepacket 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 modulation of a coherent narrowband wavepacket with another truly quantum object, a quantum dot with ground state spin degree of freedom. What results is a quantum modulation of the wavepacket phase (either 0 or {\pi} but no values in between), a new quantum state of light that cannot be described classically.

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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. 2022-07-12. Quantum modulation of a coherent state wavepacket with a single electron spin. https://arxiv.org/abs/2207.05596

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