Realization of the Werner–Holevo and Landau–Streater Quantum Channels for Qutrits on Quantum Computers

  title={Realization of the Werner–Holevo and Landau–Streater Quantum Channels for Qutrits on Quantum Computers},
  author={Aleksey I. Pakhomchik and Ivan S. Feshchenko and Andreas Glatz and Valerii M. Vinokur and Alexandr V. Lebedev and Sergey N. Filippov and G. B. Lesovik},
  journal={Journal of Russian Laser Research},
We realize the Landau–Streater (LS) and Werner–Holevo (WH) quantum channels for qutrits on IBM quantum computers. These channels correspond to the interaction between a qutrit and its environment that results in the globally unitarily covariant qutrit transformation violating the multiplicativity of the maximal p -norm. Our realization of the LS and WH channels is based on embedding the qutrit states into states of two qubits and using the single-qubit and two-qubit CNOT gates to implement the… 

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