Low-frequency spin qubit energy splitting noise in highly purified 28Si/SiGe

URN to cite this document:: urn:nbn:de:bvb:355-epub-433481
DOI to cite this document:: 10.5283/epub.43348

Struck, Tom ; Holland, Arne ; Schauer, Floyd ; Fedorets, Olexiy

; Schmidbauer, Andreas ; Sawano, Kentarou ; Riemann, Helge ; Abrosimov, Nikolay V. ; Cywinski, Lukasz

; Bougeard, Dominique

; Schreiber, Lars R.

Preview

PDF - Published Version
(1MB)

Date of publication of this fulltext: 18 Jun 2020 06:53

Alternative links to fulltext:DOI Publisher

Details

Preview

Export bibliographical data

Abstract

We identify the dominant source for low-frequency spin qubit splitting noise in a highly isotopically-purified silicon device with an embedded nanomagnet and a spin echo decay time Techo2 = 128 µs. The power spectral density (PSD) of the charge noise explains both, the clear transition from a 1/f2- to a 1/f-dependence of the splitting noise PSD as well as the experimental observation of a ...