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Noise at a Fermi-edge singularity

N. Maire·F. Hohls·T. Luedtke·K. Pierz·R. J. Haug
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Abstract

We present noise measurements of self-assembled InAs quantum dots at high magnetic fields. In comparison to I-V characteristics at zero magnetic field we notice a strong current overshoot which is due to a Fermi-edge singularity. We observe an enhanced suppression in the shot noise power simultaneous to the current overshoot which is attributed to the electron-electron interaction in the Fermi-edge singularity.

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N. Maire, F. Hohls, T. Luedtke, K. Pierz, R. J. Haug. 2006-09-28. Noise at a Fermi-edge singularity. https://doi.org/10.1103/physrevb.75.233304

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