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This research presents a significant architectural advancement for distributed quantum computing by reducing the communication overhead required for logical fanout operations. By leveraging transversal operations on Bivariate Bicycle encoded blocks, the method lowers error rates and mitigates the scalability issues caused by fragile inter-processor links. This efficiency gain is a critical step toward building practical, large-scale modular quantum systems.
Quantum Computers Cut Nonlocal Gates for Distributed Computing
Directly realising even basic operations like fanout within a distributed quantum computer demands considerable communication between processing units. This work introduces circuits that reduce required non-local operations when performing this essential function, a key step towards scalable architectures. By utilising transversal operations on Bivariate Bicycle encoded code blocks, it offers a systematic way to implement large logical fanout across multiple processors.
A new method for implementing logical fanout exists, a key process in distributed quantum computing involving multiple controlled operations from one central qubit to several remote ones. The approach overcomes limitations of previous methods which demanded substantial communication between different parts of a quantum computer by utilising transversal operations on Bivariate Bicycle encoded code blocks. An efficient technique enables distributed quantum calculations using encoded blocks of information. The method streamlines…
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