On the distribution of entanglement changes produced by unitary operations

Abstract

We consider the change of entanglement of formation $\Delta E$ produced by a unitary transformation acting on a general (pure or mixed) state $\rho$ describing a system of two qubits. We study numerically the probabilities of obtaining different values of $\Delta E$, assuming that the initial state is randomly distributed in the space of all states according to the product measure introduced by Zyczkowski {\it et al.} [Phys. Rev. A {\bf 58} (1998) 883].

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Cited by in corpus (7)

• Witness of mixed separable states useful for entanglement creation
• Discording power of quantum evolutions
• Some Features of the Conditional $q$-Entropies of Composite Quantum Systems
• Entangling power of two-qubit gates on mixed states
• Entanglement Distribution and Entangling Power of Quantum Gates
• The statistics of the entanglement changes generated by the Hadamard-CNOT quantum circuit
• Correlation between resource-generating capacities of quantum gates