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TELEPORTING N ROTATIONS ONTO N REMOTE QUBITS BY AN ENTANGLED QUDIT CHANNEL

LIBING CHEN

Department of Photoelectron and Physics, Foshan University, Foshan 528000, China

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HONG LU

Department of Photoelectron and Physics, Foshan University, Foshan 528000, China

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WEICHENG CHEN

Department of Photoelectron and Physics, Foshan University, Foshan 528000, China

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, and

RUIBO JIN

Department of Photoelectron and Physics, Foshan University, Foshan 528000, China

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https://doi.org/10.1142/S0217984909019429Cited by:1 (Source: Crossref)

Abstract

N rotations can be teleported simultaneously onto a group of remote qubits deterministically or probabilistically with the aid of an entangled qudit pair. We present a scheme for such a kind of remote control of quantum gate. We are mainly focused on the remote rotation around a fixed axis. We first present an explicit scheme for deterministically and exactly teleporting the N rotations by using a maximally entangled qudit pair as quantum channel. We also put forward a scheme for probabilistically implementing the N remote rotations with unit fidelity by employing a partially entangled qudit pair as the quantum channel. An analysis of the scheme indicates that use of partially entangled quantum channel for teleporting the N rotations leads to the problem of "the general optimal information extraction".

Keywords:

PACS: 03.67.-a, 03.67.Hk, 03.67.Lx

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