Checkerboard Logical Qubit Bus Architecture for Magic Qubit Transfer
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Solution Overview
Problem
Existing logical qubit arrangement architectures based on checkersboards require extensive time and resource consumption to move magic qubits for general-purpose quantum operations, as they can only move qubits between neighbors, necessitating many consecutive commands and halting ongoing operations.
Innovation Solution
The proposed solution involves a logical qubit arrangement architecture using a checkerboard with a magic state distiller, a magic qubit repository, and a bus unit comprising an external, internal, and temporary bus to efficiently move magic qubits by generating temporary buses only when needed and deleting them post-movement, allowing for rapid transverse and longitudinal movements within the logical qubit block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If magic qubits are moved using only external bus and internal bus in checkerboard architecture, then the structure is simple, but the movement speed is slow and requires many consecutive commands
Solution Approach 1:
The bus system is segmented into three distinct components: external bus for inter-block communication, internal bus for intra-block communication, and temporary bus for rapid local transfer. This segmentation allows each bus to be optimized for its specific function, enabling fast magic qubit movement without requiring complete system reconfiguration
Solution Approach 2:
The temporary bus is dynamically created and deleted based on operational needs. When magic qubit movement is required, the temporary bus is generated to provide rapid transfer capability; when not needed, it is deleted to minimize resource consumption. This dynamic approach balances performance improvement with system simplicity
2Loss of time
If multiple consecutive move commands are used to transport magic qubits, then the destination can be reached, but operational time increases and ongoing operations must be halted
Solution Approach 1:
The temporary bus is prepared in advance at the source location before the magic qubit transfer begins. This preliminary setup eliminates the need for sequential move commands during execution, allowing the magic qubit to be transferred directly to the destination through the pre-configured temporary bus connection
Solution Approach 2:
The temporary bus acts as an intermediary transfer mechanism between the external bus and the logical qubit block. Instead of moving the magic qubit through multiple intermediate steps via consecutive commands, the temporary bus provides a direct mediation path that significantly reduces transfer time and allows ongoing operations to continue
3Productivity
If temporary bus is always present in the system, then magic qubit movement is always fast, but resource consumption increases
Solution Approach 1:
The temporary bus transitions between existing and non-existing states based on operational requirements. It is generated only when magic qubit movement is needed and automatically deleted afterward, transforming it from a static resource into a dynamic one that provides high-speed transfer capability only when beneficial
Solution Approach 2:
The temporary bus is discarded after serving its purpose of enabling rapid magic qubit transfer. The system recovers resources by deleting the temporary bus structure, making those resources available for other operations. This approach ensures high movement efficiency when needed while minimizing resource consumption during idle periods
Data Source
AI summary
A method of moving a magic qubit in logical qubit arrangement architecture based on a checkerboard may include generating a plurality of distilled magic qubits necessary for a predetermined logic operation through a magic state distiller, storing the plurality of distilled magic qubits in a magic qubit repository, primarily moving the stored magic qubit to an area adjacent to a logical qubit block corresponding to a destination through an external bus and an internal bus, and secondarily moving the magic qubit from the area adjacent to the logical qubit block to the destination within the logical qubit block through a temporary bus.