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Four-qubit entanglement from string theory (1005.4915v2)
Published 26 May 2010 in hep-th and quant-ph
Abstract: We invoke the black hole/qubit correspondence to derive the classification of four-qubit entanglement. The U-duality orbits resulting from timelike reduction of string theory from D=4 to D=3 yield 31 entanglement families, which reduce to nine up to permutation of the four qubits.
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