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학술지 QPlayer: Lightweight, scalable, and fast quantum simulator
Cited 10 time in scopus Download 172 time Share share facebook twitter linkedin kakaostory
저자
진기성, 차규일
발행일
202304
출처
ETRI Journal, v.45 no.2, pp.304-317
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.2021-0442
협약과제
21HS2700, 결함허용 논리양자큐빗 컴퓨팅 환경을 제공하는 양자운영체제 원천기술 개발, 차규일
초록
With the rapid evolution of quantum computing, digital quantum simulations are essential for quantum algorithm verification, quantum error analysis, and new quantum applications. However, the exponential increase in memory overhead and operation time is challenging issues that have not been solved for years. We propose a novel approach that provides more qubits and faster quantum operations with smaller memory than before. Our method selectively tracks realized quantum states using a reduced quantum state representation scheme instead of loading the entire quantum states into memory. This method dramatically reduces memory space ensuring fast quantum computations without compromising the global quantum states. Furthermore, our empirical evaluation reveals that our proposed idea outperforms traditional methods for various algorithms. We verified that the Grover algorithm supports up to 55 qubits and the surface code algorithm supports up to 85 qubits in 512 GB memory on a single computational node, which is against the previous studies that support only between 35 qubits and 49 qubits.
KSP 제안 키워드
AND operation, Algorithm verification, Challenging issues, Empirical Evaluation, Error analysis, Grover algorithm, Memory overhead, Memory space, Novel approach, Quantum Computation, Quantum computing
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