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qGDP: Quantum Legalization and Detailed Placement for Superconducting Quantum Computers

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Title: qGDP: Quantum Legalization and Detailed Placement for Superconducting Quantum Computers
Authors: Zhang, Junyao, Zhou, Guanglei, Cheng, Feng, Ku, Jonathan, Ding, Qi, Gu, Jiaqi, Wang, Hanrui, Li, Hai "Helen", Chen, Yiran
Publication Year: 2024
Collection: Computer Science
Quantum Physics
Subject Terms: Quantum Physics, Electrical Engineering and Systems Science - Systems and Control
More Details: Noisy Intermediate-Scale Quantum (NISQ) computers are currently limited by their qubit numbers, which hampers progress towards fault-tolerant quantum computing. A major challenge in scaling these systems is crosstalk, which arises from unwanted interactions among neighboring components such as qubits and resonators. An innovative placement strategy tailored for superconducting quantum computers can systematically address crosstalk within the constraints of limited substrate areas. Legalization is a crucial stage in placement process, refining post-global-placement configurations to satisfy design constraints and enhance layout quality. However, existing legalizers are not supported to legalize quantum placements. We aim to address this gap with qGDP, developed to meticulously legalize quantum components by adhering to quantum spatial constraints and reducing resonator crossing to alleviate various crosstalk effects. Our results indicate that qGDP effectively legalizes and fine-tunes the layout, addressing the quantum-specific spatial constraints inherent in various device topologies. By evaluating diverse NISQ benchmarks. qGDP consistently outperforms state-of-the-art legalization engines, delivering substantial improvements in fidelity and reducing spatial violation, with average gains of 34.4x and 16.9x, respectively.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2411.02447
Accession Number: edsarx.2411.02447
Database: arXiv
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  Data: qGDP: Quantum Legalization and Detailed Placement for Superconducting Quantum Computers
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Junyao%22">Zhang, Junyao</searchLink><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Guanglei%22">Zhou, Guanglei</searchLink><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Feng%22">Cheng, Feng</searchLink><br /><searchLink fieldCode="AR" term="%22Ku%2C+Jonathan%22">Ku, Jonathan</searchLink><br /><searchLink fieldCode="AR" term="%22Ding%2C+Qi%22">Ding, Qi</searchLink><br /><searchLink fieldCode="AR" term="%22Gu%2C+Jiaqi%22">Gu, Jiaqi</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Hanrui%22">Wang, Hanrui</searchLink><br /><searchLink fieldCode="AR" term="%22Li%2C+Hai+"Helen"%22">Li, Hai "Helen"</searchLink><br /><searchLink fieldCode="AR" term="%22Chen%2C+Yiran%22">Chen, Yiran</searchLink>
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  Label: Publication Year
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  Data: 2024
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  Data: Computer Science<br />Quantum Physics
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  Data: <searchLink fieldCode="DE" term="%22Quantum+Physics%22">Quantum Physics</searchLink><br /><searchLink fieldCode="DE" term="%22Electrical+Engineering+and+Systems+Science+-+Systems+and+Control%22">Electrical Engineering and Systems Science - Systems and Control</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: Noisy Intermediate-Scale Quantum (NISQ) computers are currently limited by their qubit numbers, which hampers progress towards fault-tolerant quantum computing. A major challenge in scaling these systems is crosstalk, which arises from unwanted interactions among neighboring components such as qubits and resonators. An innovative placement strategy tailored for superconducting quantum computers can systematically address crosstalk within the constraints of limited substrate areas. Legalization is a crucial stage in placement process, refining post-global-placement configurations to satisfy design constraints and enhance layout quality. However, existing legalizers are not supported to legalize quantum placements. We aim to address this gap with qGDP, developed to meticulously legalize quantum components by adhering to quantum spatial constraints and reducing resonator crossing to alleviate various crosstalk effects. Our results indicate that qGDP effectively legalizes and fine-tunes the layout, addressing the quantum-specific spatial constraints inherent in various device topologies. By evaluating diverse NISQ benchmarks. qGDP consistently outperforms state-of-the-art legalization engines, delivering substantial improvements in fidelity and reducing spatial violation, with average gains of 34.4x and 16.9x, respectively.
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      – SubjectFull: Quantum Physics
        Type: general
      – SubjectFull: Electrical Engineering and Systems Science - Systems and Control
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      – TitleFull: qGDP: Quantum Legalization and Detailed Placement for Superconducting Quantum Computers
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