| Full text | |
| Author(s): |
Total Authors: 2
|
| Affiliation: | [1] Univ Fed Sao Carlos, Dept Fis, POB 676, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | ANNALS OF PHYSICS; v. 364, p. 182-199, JAN 2016. |
| Web of Science Citations: | 7 |
| Abstract | |
A generalized description of entanglement and quantum correlation properties constraining internal degrees of freedom of Dirac (-like) structures driven by arbitrary Poincare classes of external field potentials is proposed. The role of (pseudo)scalar, (pseudo)vector and tensor interactions in producing/destroying intrinsic quantum correlations for SU(2) circle times SU(2) bi-spinor structures is discussed in terms of generic coupling constants. By using a suitable ansatz to obtain the Dirac Hamiltonian eigenspinor structure of time-independent solutions of the associated Liouville equation, the quantum entanglement, via concurrence, and quantum correlations, via geometric discord, are computed for several combinations of well-defined Poincare classes of Dirac potentials. Besides its inherent formal structure, our results set up a framework which can be enlarged as to include localization effects and to map quantum correlation effects into Dirac -like systems which describe low energy excitations of graphene and trapped ions. (C) 2015 Elsevier Inc. All rights reserved. (AU) | |
| FAPESP's process: | 15/05903-4 - SU(2) x SU(2) bi-spinor structure entanglement and additional quantum correlations exhibited by Dirac-like systems as graphene and trapped ions |
| Grantee: | Alex Eduardo de Bernardini |
| Support Opportunities: | Regular Research Grants |