Undetermined Terminal Quantum Remote State Preparation
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Solution Overview
Problem
Current remote quantum state preparation schemes are limited as they require a determined receiving terminal, lacking a solution for cases where the receiving terminal is indefinite.
Innovation Solution
An undetermined terminal-based accelerated joint quantum remote state preparation method is implemented, using at least two sending terminals, a receiving terminal edge node, and multiple candidate receiving terminals, where chain and GHZ channels are established to jointly prepare and transfer information, with the receiving terminal edge node determining and sending the information to candidate terminals, and the target terminal performing unitary transformations to recover the information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current remote quantum state preparation schemes are used, then the scheme works when sending and receiving terminals are determined, but the scheme cannot be applied when the receiving terminal is indefinite
Solution Approach 1:
The system is segmented into multiple functional components: sending terminals, receiving terminal edge nodes, and candidate receiving terminals. This segmentation allows the system to handle undetermined receiving terminals by distributing functionality across multiple nodes, thereby improving adaptability without overwhelming complexity at any single point.
Solution Approach 2:
The receiving terminal edge node acts as an intermediary between sending terminals and candidate receiving terminals. This intermediary manages the complexity of handling multiple candidate terminals and coordinating quantum operations, enabling the system to adapt to undetermined receiving terminals while maintaining manageable system complexity.
2Adaptability or versatility
If multiple candidate receiving terminals are involved, then the system can handle undetermined receiving terminals, but the information transfer complexity increases
Solution Approach 1:
The system establishes chain channels and GHZ channels in advance before the actual information transfer. This preliminary setup of quantum entanglement resources simplifies the subsequent information transfer process involving multiple candidate terminals, reducing the complexity of real-time coordination and enabling efficient handling of undetermined receiving terminals.
3Reliability
If joint preparation by multiple sending terminals is implemented, then information security is improved, but the preparation process complexity increases
Solution Approach 1:
Multiple sending terminals jointly prepare the quantum state by combining their operations on shared entangled resources. This merging of operations from multiple terminals enhances information security through distributed quantum processing while the standardized joint preparation protocol keeps the process complexity manageable.
Solution Approach 2:
The system changes the parameters of quantum operations performed by multiple sending terminals, such as measurement bases and unitary transformations. By coordinating these parameter changes across multiple terminals, the system achieves enhanced security through diversified quantum operations while maintaining controlled process complexity through systematic parameter management.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method improves information transfer efficiency and security by enabling remote quantum state preparation even when the receiving terminal is undetermined, addressing the lack of schemes for such scenarios.
Implementation Method 1
determining chain channels between the at least two sending terminals and the receiving terminal edge node, and determining GHZ channels between the receiving terminal edge node and the plurality of candidate receiving terminals
Implementation Method 2
determining GHZ channels between the receiving terminal edge node and the plurality of candidate receiving terminals
Data Source
AI summary
The invention provides an undetermined terminal-based accelerated joint quantum remote state preparation method, including: determining chain channels between at least two sending terminals and a receiving terminal edge node, and determining GHZ channels between the receiving terminal edge node and a plurality of candidate receiving terminals; jointly preparing, by the at least two sending terminals together, to-be-transferred information for the receiving terminal edge node; and sending, by the receiving terminal edge node, the to-be-transferred information to the plurality of candidate receiving terminals, after a target receiving terminal is determined, performing, by the other candidate receiving terminals, a measurement operation, and performing, by the target receiving terminal, corresponding unitary transformation to recover the to-be-transferred information. Information transfer efficiency and information security are greatly improved, thereby resolving a current problem that a terminal lacks a scheme of remotely preparing a quantum state in a case that a receiving terminal is indefinite.