Phys. Rev. Lett. 105, 100507 (2010) [4 pages]Four-Qubit Entanglement Classification from String TheoryReceived 30 June 2010; published 2 September 2010 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. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.105.100507
DOI:
10.1103/PhysRevLett.105.100507
PACS:
03.67.Mn, 03.65.Ud, 04.70.Dy, 11.25.Mj
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