Controlled teleportation of high-dimension quantum-states with generalized Bell-state measurement |
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Authors: | Zhan You-Bang |
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Institution: | Department of Physics, Huaiyin Teachers College, Huaian 223001, China |
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Abstract: | In this paper a scheme for controlled teleportation of arbitrary
high-dimensional unknown quantum states is proposed by using the generalized
Bell-basis measurement and the generalized Hadamard transformation. As two
special cases, two schemes of controlled teleportation of an unknown
single-qutrit state and an unknown two-qutrit state are investigated in
detail. In the first scheme, a maximally entangled
three-qutrit state is used as the quantum channel, while in the second
scheme, an entangled two-qutrit state and an entangled three-qutrit state are
employed as the quantum channels. In these schemes, an unknown qutrit state
can be teleported to either one of two receivers, but only one of them can
reconstruct the qutrit state with the help of the other. Based on the case
of qutrits, a scheme of controlled teleportation of an unknown qudit state
is presented. |
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Keywords: | controlled
teleportation high-dimensional quantum state generalized Bell-basis measurement generalized Hadamard transformation |
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