Bibliographic Details
| Title: |
Local correlations of mixed two-qubit states |
| Authors: |
Zhang, Fu-Lin1, Chen, Jing-Ling1 chenjl@nankai.edu.cn, Ren, Chang-Liang2,3, Shi, Ming-Jun3 |
| Source: |
Physics Letters A. May2010, Vol. 374 Issue 24, p2429-2433. 5p. |
| Subjects: |
Statistical correlation, Energy levels (Quantum mechanics), Quantum theory, Distribution (Probability theory), Von Neumann algebras, Statistical physics |
| Abstract: |
Abstract: The quantum probability distribution arising from single-copy von Neumann measurements on an arbitrary two-qubit state is decomposed into the local and nonlocal parts, in the approach of Elitzur, Popescu and Rohrlich [A. Elitzur, S. Popescu, D. Rohrlich, Phys. Lett. A 162 (1992) 25]. A lower bound of the local weight is proved being connected with the concurrence of the state . The local probability distributions for two families of mixed states are constructed independently, which accord with the lower bound. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
