A universal quantum computer with a million qubits will solve a wide range of problems, but even then, offloading entire problems to a quantum circuit may not be the best use of resources.
With that in mind, companies and researchers are paying more attention to the concept of quantum-circuit cutting, which breaks down large quantum circuits into smaller fragments for execution across multiple devices, which could include quantum and classical computers.
IBM last month incorporated circuit cutting as a key element in its quantum roadmap, and has also given the technology its own name, calling it "dynamic circuits." Dell is taking a close look at quantum circuit-cutting to plug quantum computers as accelerators into classical computing infrastructure.
"Quantum circuit cutting is the process of partitioning a large quantum circuit into smaller fragments that can be executed independently, either successively on the same device, or across multiple devices," said Olivia Di Matteo, who is an assistant professor at University of British Columbia's Department of Electrical and Computer Engineering.
From HPC Wire
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