3 papers
quant-ph2012
Nonlocal correlations for manifold quantum systems: Entanglement of two-spin states
K. Berrada, A. Mohammadzade, S. Abdel-Khalek +2
In this paper, we study the bipartite entanglement of spin coherent states in the case of pure and mixed states. By a proper choice of the subsystem spins, the entanglement for lar…
quant-ph2010
D-concurrence bounds for pair coherent states
S. Salimi, A. Mohammadzade
The pair coherent state is a state of a two-mode radiation field which is known as a state with non-Gaussian wave function. In this paper, the upper and lower bounds for D-concurre…
quant-ph2010
Concurrence for a two-qubits mixed state consisting of three pure states in the framework of SU(2) coherent states
S. Salimi, A. Mohammadzade, K. Berrada
A simplified expression of concurrence for two-qubit mixed state having no more than three non-vanishing eigenvalues is obtained. Basing on SU(2) coherent states, the amount of ent…