Year: 2007
Type: article
Abstract: We study decoherence processes of an S=1∕2 localized spin coupled to conduction band electrons in a metal or a semiconductor via an Ising-like interaction. We derive master equations for the density matrix of the localized spin by tracing out all degrees of freedom in the conduction electron system based on the linked-cluster-expansion technique. It is found that the decoherence occurs more rapidly for the metallic case than for semiconducting case.
Source: Journal of Applied Physics
DOI: 10.1063/1.2712944
Authors: Naoyoshi Yamada, Akimasa Sakuma, Hiroki Tsuchiura
Institutions: Tohoku University, Japan Science and Technology Agency
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2054879992