The statistics of the entanglement changes generated by the Hadamard-CNOT quantum circuit

Details The statistics of the entanglement changes generated by the Hadamard-CNOT quantum circuit The statistics of the entanglement changes generated by the Hadamard-CNOT quantum circuit

2002-10-08

arxiv.org/abs/quant-ph/0210051v1

Physica A 327, 140 (2003)

Physics

Quantum Physics

12 pages, 2 figures

Scientific paper

10.1016/S0378-4371(03)00466-7

We consider the change of entanglement of formation $\Delta E$ produced by the Hadamard-CNOT circuit 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 recently introduced by Zyczkowski {\it et al.} [Phys. Rev. A {\bf 58} (1998) 883].

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