Hardware-Assisted Parameterized Circuit Execution
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911022256750592 |
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| author | Rajagopala, Abhi D. Hashim, Akel Fruitwala, Neelay Huang, Gang Xu, Yilun Hines, Jordan Siddiqi, Irfan Klymko, Katherine Nowrouzi, Kasra |
| author_facet | Rajagopala, Abhi D. Hashim, Akel Fruitwala, Neelay Huang, Gang Xu, Yilun Hines, Jordan Siddiqi, Irfan Klymko, Katherine Nowrouzi, Kasra |
| contents | Standard compilers for quantum circuits decompose arbitrary single-qubit gates into a sequence of physical X(pi/2) pulses and virtual-Z phase gates. Consequently, many circuit classes implement different logic operations but have an equivalent structure of physical pulses that only differ by changes in virtual phases. When many structurally-equivalent circuits need to be measured, generating sequences for each circuit is unnecessary and cumbersome, since compiling and loading sequences onto classical control hardware is a primary bottleneck in quantum circuit execution. In this work, we develop a hardware-assisted protocol for executing parameterized circuits on our FPGA-based control hardware, QubiC. This protocol relies on a hardware-software co-design technique in which software identifies structural equivalency in circuits and "peels" off the relevant parameterized angles to reduce the overall waveform compilation time. The hardware architecture then performs real-time "stitching" of the parameters in the circuit to measure circuits that implement a different overall logical operation. This work demonstrates significant speed ups in the total execution time for several different classes of quantum circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_03725 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hardware-Assisted Parameterized Circuit Execution Rajagopala, Abhi D. Hashim, Akel Fruitwala, Neelay Huang, Gang Xu, Yilun Hines, Jordan Siddiqi, Irfan Klymko, Katherine Nowrouzi, Kasra Quantum Physics Standard compilers for quantum circuits decompose arbitrary single-qubit gates into a sequence of physical X(pi/2) pulses and virtual-Z phase gates. Consequently, many circuit classes implement different logic operations but have an equivalent structure of physical pulses that only differ by changes in virtual phases. When many structurally-equivalent circuits need to be measured, generating sequences for each circuit is unnecessary and cumbersome, since compiling and loading sequences onto classical control hardware is a primary bottleneck in quantum circuit execution. In this work, we develop a hardware-assisted protocol for executing parameterized circuits on our FPGA-based control hardware, QubiC. This protocol relies on a hardware-software co-design technique in which software identifies structural equivalency in circuits and "peels" off the relevant parameterized angles to reduce the overall waveform compilation time. The hardware architecture then performs real-time "stitching" of the parameters in the circuit to measure circuits that implement a different overall logical operation. This work demonstrates significant speed ups in the total execution time for several different classes of quantum circuits. |
| title | Hardware-Assisted Parameterized Circuit Execution |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2409.03725 |