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arXiv · 1911.00893

Coherent photon coincidence spectroscopy of single quantum systems

Matthew Otten·Tristan Kenneweg·Matthias Hensen·Stephen K. Gray·Walter Pfeiffer
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Abstract

Non-equilibrium photon correlations of coherently excited single quantum systems can reveal their internal quantum dynamics and provide spectroscopic access. Here we propose and discuss the fundamentals of a coherent photon coincidence spectroscopy based on the application of laser pulses with variable delay and the detection of an time-averaged two-photon coincidence rate. For demonstration, two simple but important cases, i.e., an exciton - biexciton in a quantum dot and two coupled quantum emitters, are investigated based on quantum dynamics simulations demonstrating that this nonlinear spectroscopy reveals information specific to the particular single quantum system.

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Matthew Otten, Tristan Kenneweg, Matthias Hensen, Stephen K. Gray, Walter Pfeiffer. 2019-11-03. Coherent photon coincidence spectroscopy of single quantum systems. https://doi.org/10.1103/physreva.102.043118

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