Name
Title | ||
|---|---|---|
Sudden change of local quantum uncertainty and geometry for arbitrary two-qubit X-states. |
Abstract | ||
|---|---|---|
Local quantum uncertainty (LQU) as a reliable measure of nonclassical correlations has been recently proposed by Girolami et al. (Phys Rev Lett 110:240402, 2013). In this paper, we have derived an explicit analytical expression of LQU and presented the level surfaces of constant LQU for a class of two-qubit X-states beyond Bell-diagonal states. The dynamical behavior of quantum correlations via the LQU under decoherence environment is studied, and the phenomenon of a sudden change of LQU is demonstrated. Our results are illustrated through the action of different noisy environments individually on a single qubit of quantum system where there is a necessary condition for the occurrence of sudden change of LQU. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1007/s11128-020-02792-5 | QUANTUM INFORMATION PROCESSING |
Keywords | DocType | Volume |
Local quantum uncertainty,Nonclassical correlations,Decoherence channels | Journal | 19 |
Issue | ISSN | Citations |
9 | 1570-0755 | 0 |
PageRank | References | Authors |
0.34 | 0 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| You-Neng Guo | 1 | 3 | 3.37 |
| Hu-ping Peng | 2 | 0 | 0.34 |
| Ke Zeng | 3 | 1 | 2.85 |
| Guo-you Wang | 4 | 0 | 0.34 |