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arXiv · 0906.4068

Many-body two-quantum coherences in semiconductor nanostructures

Denis Karaiskaj·Alan D. Bristow·Lijun Yang·Xingcan Dai·Richard P. Mirin·Shaul Mukamel·Steven T. Cundiff
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Abstract

We present experimental coherent two-dimensional Fourier transform spectra of the exciton resonances in semiconductor quantum wells for a pulse sequence that isolates two-quantum coherences. By measuring the real part of the spectra, we can determine that the spectra are dominated by two quantum coherences due to many-body interactions, not bound biexcitons. Simulations performed using dynamics controlled truncation agree well with the experiments.

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Denis Karaiskaj, Alan D. Bristow, Lijun Yang, Xingcan Dai, Richard P. Mirin, Shaul Mukamel, Steven T. Cundiff. 2009-12-21. Many-body two-quantum coherences in semiconductor nanostructures. https://doi.org/10.1103/physrevlett.104.117401

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