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The beauty of noise: Listening to the spin noise of a single hole in a semiconductor quantum dot

The beauty of noise: Listening to the spin noise of a single hole in a semiconductor quantum dot

Datum: 12. Juni 2018 13:00

Ort: NWZII, 6.331

The efficient optical spin manipulation of individual two-level systems opens fascinating perspectives for spin-photon interfaces, quantum cryptography, and quantum information processing. One of the particularly promising solid-state candidates for such spin-photon quantum devices is a single spin localized in a semiconductor quantum dot. However, which is the best nondestructive measurement technique to study the spin dynamics of such a delicate system?

Semiconductor spin noise spectroscopy has emerged as a unique experimental tool that utilizes spin fluctuations to provide insight into the spin dynamics in doped semiconductors and semiconductor nanostructures. The principle of spin noise goes back 70 years but only recent experimental advances have pushed the sensitivity of spin noise from billions to a single spin. In this talk I will introduce the latest advances in this rapidly progressing field, present electron, hole, and nuclear spin noise in semiconductors, and discuss further fields of applications.

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