Spin decay and quantum parallelism

URN to cite this document:: urn:nbn:de:bvb:355-epub-282445
DOI to cite this document:: 10.5283/epub.28244

Schliemann, John ; Khaetskii, Alexander V. ; Loss, Daniel

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Date of publication of this fulltext: 22 May 2013 13:46

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Abstract

We study the time evolution of a single spin coupled inhomogeneously to a spin environment. Such a system is realized by a single electron spin bound in a semiconductor nanostructure and interacting with surrounding nuclear spins. We find striking dependencies on the type of initial state of the nuclear spin system. Simple product states show a profoundly different behavior than randomly ...