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Concurrence is an entanglement measure characterizing the {\it mixed} state bipartite correlations inside of a pure state of an $n$-qubit system. We show that after organizing the charges and the mod...
On the concurrence of superpositions of many states
On the concurrence superpositions many states
2010/11/5
In this paper we use the \textit{concurrence vector}, as a measure of entanglement, and investigate lower and upper bounds on the concurrence of a superposition of bipartite states as a function of t...
Spin Squeezing, Negative Correlations, and Concurrence in the Quantum Kicked Top Model
Spin Squeezing Negative Correlations Concurrence Quantum Kicked Top Model
2010/10/29
We study spin squeezing, negative correlations, and concurrence in the quantum kicked top model. We prove that the spin squeezing and negative correlations are equivalent for spin systems with only sy...
Entanglement Generation by a Three-Dimensional Qubit Scattering: Concurrence vs. Path (In)Distinguishability
Entanglement Generation Three-Dimensional Qubit Scattering Concurrence vs. Path(In)Distinguishability
2010/4/8
A scheme for generating an entangled state in a two spin-1/2 system by means of a spin-dependent potential scattering of another qubit is presented and analyzed in three dimensions. The entanglement i...
Channel's Concurrence and Quantum Teleportation
concurrence quantum telportation entanglement mixed state
Heisenberg spin ring
2007/8/15
2005Vol.43No.1pp.55-58DOI:
Channel's Concurrence and Quantum Teleportation
LING Yin-Sheng
Department of Physics, Suzhou University, Suzhou 215006, China
(Re...