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Polynomial invariants for discrimination and classification of four-qubit entanglement

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Viehmann, Oliver ; Eltschka, Christopher ; Siewert, Jens
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Date of publication of this fulltext: 23 Apr 2015 06:21


The number of entanglement classes in stochastic local operations and classical communication (SLOCC) classifications increases with the number of qubits and is already infinite for four qubits. Criteria for explicitly discriminating and classifying pure states of four and more qubits are highly desirable and therefore at the focus of intense theoretical research. We develop a general criterion ...


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