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quant-ph2003★ 2 cited
An efficient numerical method for calculating the entanglement of formation of arbitrary mixed quantum states of any dimension
J. R. Gittings, A. J. Fisher
We present a conjugate gradient method for calculating the entanglement of formation of arbitrary mixed quantum states of any dimension and with any bipartite division of the Hilbe…
quant-ph2002★ 1 cited
Lower limit on decoherence introduced by entangling two spatially-separated qubits
A. J. Fisher
It is shown that a generalization of the fluctuation-dissipation theorem places an upper bound on the figure of merit for any quantum gate designed to entangle spatially-separated…