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arXiv · 2303.01531

Resonance fluorescence of noisy systems

Rafał A. Bogaczewicz·Paweł Machnikowski
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Abstract

Light scattering from resonantly or nearly resonantly excited systems, known as resonance fluorescence, has been gaining importance as a versatile tool for investigating quantum states of matter and readout of quantum information, recently including also the inherently noisy solid state systems. In this work we develop a general theory of resonance fluorescence in the low excitation limit on systems in which the transition energy is subject to noise for two important classes of noise processes: white noise fluctuations that lead to phase diffusion and an arbitrary stationary Markovian noise process on a finite set of states. We apply the latter to the case of random telegraph noise and a sum of an arbitrary number of identical random telegraph noise contributions. We show that different classes of noise influence the RF spectrum in a characteristic way. Hence, the RF spectrum carries information on the characteristics of noise present in the physical system.

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Rafał A. Bogaczewicz, Paweł Machnikowski. 2023-03-02. Resonance fluorescence of noisy systems. https://arxiv.org/abs/2303.01531

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