110 citations · 570 across the 16 of their papers we have counts for
6 papers · 1 filter
Black hole entropy and quantum information
M. J. Duff, S. Ferrara
We review some recently established connections between the mathematics of black hole entropy in string theory and that of multipartite entanglement in quantum information theory.…
E_7 and the tripartite entanglement of seven qubits
M. J. Duff, S. Ferrara
In quantum information theory, it is well known that the tripartite entanglement of three qubits is described by the group [SL(2,C)]^3 and that the entanglement measure is given by…
Metric and coupling reversal in string theory
M. J. Duff, Jussi Kalkkinen
Invariance under reversing the sign of the metric G_{MN}(x) and/or the sign of the string coupling field H(x), where <H(x)> = g_s, leads to four possible Universes denoted 1,I,J,K…
Signature reversal invariance
M. J. Duff, Jussi Kalkkinen
We consider the signature reversing transformation of the metric tensor g_ab goes to -g_ab induced by the chiral transformation of the curved space gamma matrices gamma_a goes to g…
Hidden symmetries of the Nambu-Goto action
M. J. Duff
We organize the eight variables of the four-dimensional bosonic string ({\dot X}^μ, X'^μ) into a 2 x 2 x 2 hypermatrix a_{AA'A''} and show that in signature (2,2) the Nambu-Goto La…
String triality, black hole entropy and Cayley's hyperdeterminant
M. J. Duff
The four-dimensional N=2 STU model of string compactification is invariant under an SL(2,Z)_S x SL(2,Z)_T x SL(2,Z)_U duality acting on the dilaton/axion S, complex Kahler form T a…