|
|
|
| |
World's one of the largest Research
Career Network |
|
|
|
Benefits |
- Academic & Industry jobs
- Project funding
- Visiting faculty positions
- Visiting scientist positions
- Invited talks
- and more...
|
|
|
|
|
|
|
|
Register FREE
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Physics Express 2011, 1: 19
|
|
|
Research Article
|
|
|
|
|
|
|
Entanglement of more general two-qubit states
|
|
|
|
K. Berradaa,c, H. Eleuchb, Y. Hassounia,c
|
|
|
|
|
|
|
|
a Laboratoire de Physique Théorique URAC 13, Faculté des Sciences, Université
Mohammed V-Agdal, Av. Ibn Battouta, B.P. 1014, Agdal Rabat, Morocco
b Institute for Quantum Studies and Department of Physics,
Texas A&M University, TX 77843, USA
c The Abdus Salam International Centre for
Theoretical Physics, Trieste, Italy
|
|
|
|
|
|
|
|
Abstract |
|
|
|
In this paper, we investigate the degree of entanglement for more general two-qubit states in the construction of spin coherent states. As a measure of entanglement, we use the concurrence and we study its behavior as a function of some new parameters for the case of pure and mixed states. Finally, we study the entanglement of a class of mixed states defined as a statistical mixture of two pure states by using a simplified expression of concurrence in the Wootters measure of entanglement.
|
|
|
|
|
|
|
Keywords |
|
|
|
Quantum information; Entanglement; Concurrence; Coherent states
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|