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Teleportation through <Emphasis Type="Italic">W</Emphasis>-class states |
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| Authors: | V N Gorbachev A I Trubilko A A Rodichkina |
| Institution: | (1) Northwest Institute of Printing, St. Petersburg University of Design, St. Petersburg, 191180, Russia;(2) Laboratory of Quantum Information and Quantum Calculations, St. Petersburg University of Aerospace Instrument Building, St. Petersburg, Russia |
| Abstract: | The possibility of using entangled states of the W class either as a quantum channel for teleportation or as states to be teleported is analyzed. The protocols are determined through the unitary transformation of the schemes based on the Greenberger-Horne-Zeilinger (GHZ) channel. It is shown that the main feature of new quantum channels of the W class is a set of nonlocal operators capable of recovering an unknown state. |
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