Proof of the Gour-Wallach conjecture
classification
🪐 quant-ph
keywords
conjecturemeasureabsolutedescribingentangledentanglementfourfour-qubit
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The absolute value of the hyperdeterminant of four qubits is a useful measure of genuine entanglement. We prove a recent conjecture of Gour and Wallach describing the pure maximally entangled four-qubit states with respect to this measure.
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