研究目的
Investigating the probabilistic teleportation of unknown two-qubit entangled state utilizing non-maximally entangled GHZ state as quantum channel.
研究成果
The proposed scheme for teleporting unknown two-qubit entangled state via non-maximally entangled GHZ state is novel and efficient. It relates quantum teleportation with quantum state discrimination, deriving optimal POVM operators to maximize the probability of correct detection. The scheme is suitable for situations where only the sender has the full knowledge of the coefficients of the quantum channel.
研究不足
The scheme is applicable only when the sender has the full knowledge of the coefficients of the quantum channel. The success probability of teleportation depends on the entanglement of the quantum channel.
1:Experimental Design and Method Selection:
The study formulates the teleportation as an unambiguous state discrimination problem and derives the exact optimal POVM operator for maximizing the success probability of unambiguous state discrimination.
2:Sample Selection and Data Sources:
Utilizes non-maximally entangled GHZ state as quantum channel for transmitting unknown two-qubit entangled state.
3:List of Experimental Equipment and Materials:
Requires one three-qubit POVM for the sender, one two-qubit unitary operation for the receiver, and two cbits for outcome notification.
4:Experimental Procedures and Operational Workflow:
Alice performs a joint measurement on particles (1, 2, 3) to collapse the state on particles (4, 5) into one of four possible states. Bob performs unitary operation based on classical information received from Alice to reconstruct the original state.
5:Data Analysis Methods:
The average fidelity is calculated to show the quantum information transmission efficiency.
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