Wrapped branes as qubits

L. Borsten, D. Dahanayake, M. J. Duff, H. Ebrahim, W. Rubens

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


Recent work has established a correspondence between the tripartite entanglement measure of three qubits and the macroscopic entropy of the four-dimensional 8-charge STU black hole of supergravity. Here we consider the configurations of intersecting D3-branes, whose wrapping around the six compact dimensions T6 provides the microscopic string-theoretic interpretation of the charges, and associate the three-qubit basis vectors |ABC, (A, B, C=0 or 1) with the corresponding 8 wrapping cycles. In particular, we relate a well-known fact of quantum information theory, that the most general real three-qubit state can be parameterized by four real numbers and an angle, to a well-known fact of string theory, that the most general STU black hole can be described by four D3-branes intersecting at an angle.

Original languageEnglish
Article number251602
JournalPhysical Review Letters
Issue number25
Publication statusPublished - 25 Jun 2008


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