Entanglement capabilities of non-local Hamiltonians

Authors:
  • WDW. Dür
    W. Dür
  • GVG. Vidal
    G. Vidal
  • JCJ. I. Cirac
    J. I. Cirac
  • NLN. Linden
    N. Linden
  • SPS. Popescu
    S. Popescu
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Abstract
We quantify the capability of creating entanglement for a general physical interaction acting on two qubits. We give a procedure for optimizing the generation of entanglement. We also show that a Hamiltonian can create more entanglement if one uses auxiliary systems.