Universal spatial correlations in random spinor fields

Urbina, Juan Diego and Wimmer, Michael and Bauernfeind, Dominik and Espitia, Diego and Adagideli, Inanc and Richter, Klaus (2013) Universal spatial correlations in random spinor fields. PHYSICAL REVIEW E, 87 (4). ISSN 1539-3755,

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Abstract

We identify universal spatial fluctuations in systems with nontrivial spin dynamics. To this end we calculate by exact numerical diagonalization a variety of experimentally relevant correlations between spinor amplitudes, spin polarizations, and spin currents, both in the bulk and near the boundary of a confined two-dimensional clean electron gas in the presence of spin-orbit interaction. We support our claim of universality with the excellent agreement between the numerical results and system-independent spatial correlations of a random field defined on both the spatial and spin degrees of freedom. A rigorous identity relating our universal predictions with response functions provides a direct physical interpretation of our results in the framework of linear response theory. DOI :10.1103/PhysRevE.87.042115

Item Type: Article
Uncontrolled Keywords: ;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Depositing User: Dr. Gernot Deinzer
Date Deposited: 16 Apr 2020 10:12
Last Modified: 16 Apr 2020 10:12
URI: https://pred.uni-regensburg.de/id/eprint/16813

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