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arXiv · 2401.14976

Spin Noise Spectroscopy of a Single Spin using Single Detected Photons

Manuel Gundín·Paul Hilaire·Clément Millet·Elham Mehdi·Carlos Antón·Abdelmounaim Harouri·Aristide Lemaître·Isabelle Sagnes·Niccolo Somaschi·Olivier Krebs·Pascale Senellart·Loïc Lanco
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Abstract

Spin noise spectroscopy has become a widespread technique to extract information on spin dynamics in atomic and solid-state systems, in a potentially non-invasive way, through the optical probing of spin fluctuations. Here we experimentally demonstrate a new approach in spin noise spectroscopy, based on the detection of single photons. Due to the large spin-dependent polarization rotations provided by a deterministically-coupled quantum dot-micropillar device, giant spin noise signals induced by a single-hole spin are extracted in the form of photon-photon cross-correlations. Ultimately, such a technique can be extended to an ultrafast regime probing mechanisms down to few tens of picoseconds.

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Manuel Gundín, Paul Hilaire, Clément Millet, Elham Mehdi, Carlos Antón, Abdelmounaim Harouri, Aristide Lemaître, Isabelle Sagnes, Niccolo Somaschi, Olivier Krebs, Pascale Senellart, Loïc Lanco. 2024-01-26. Spin Noise Spectroscopy of a Single Spin using Single Detected Photons. https://arxiv.org/abs/2401.14976

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