Schliemann, John (2010) Spins coupled to a spin bath: From integrability to chaos. Phys. Rev. B 81, 081301.
Motivated by the hyperfine interaction of electron spins with surrounding nuclei, we investigate systems of central spins coupled to a bath of noninteracting spins in the framework of random matrix theory. With increasing number of central spins a transition from Poissonian statistics to the Gaussian orthogonal ensemble occurs which can be described by a generalized Brody distribution. These ...
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|Date:||1 February 2010|
|Institutions:||Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann|
|Projects:||SFB 631: Festkörperbasierte Quanteninformationsverarbeitung|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||11 May 2012 09:42|
|Last Modified:||13 Mar 2014 18:50|