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EPJ Quantum Technology
Figure 3 | EPJ Quantum Technology

Figure 3

From: Optimising the quantum/classical interface for efficiency and portability with a multi-level hardware abstraction layer for quantum computers

Figure 3

Testing scenarios for the QHAL. Steps to transmit a commands sequence from the application layer to the quantum computer at QHAL level 3 (top), 2 (middle) and 1 (bottom). At QHAL level 3, communications occur through the geographical network infrastructures of the Internet. At QHAL level 2, communications occur through software containers—abstractions at the application layer packaging code and dependencies together. At QHAL level 1, communications occur through hardware accelerators, which perform specific functions with greater efficiency than if they had been completed on a generic CPU

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