The entanglement criterion of multiqubits

Details The entanglement criterion of multiqubits The entanglement criterion of multiqubits

2005-06-16

arxiv.org/abs/quant-ph/0506127v2

Physics

Quantum Physics

7 pages, No figure

Scientific paper

We present an entanglement criterion for multiqubits by using the quantum correlation tensors which rely on the expectation values of the Pauli operators for a multiqubit state. Our criterion explains not only the total entanglement of the system but also the partial entanglement in subsystems. It shows that we have to consider the subsystem entanglements in order to obtain the full description for multiqubit entanglements. Furthermore, we offer an extension of the entanglement to multiqudits.

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