研讨班报告

计算机科学研讨班:Observable-Driven Speed-ups in Quantum Simulations

发布时间:2024-12-02
 

中国科学院数学与系统科学研究院

数学研究所

学术报告

计算机科学研讨班

 

Speaker: Wenjun Yu 博士(University of Hong Kong

Title: Observable-Driven Speed-ups in Quantum Simulations

Time&Venue: 2024122日(星期一)9:30-10:30 &南楼N226

Abstract: As quantum technology advances, quantum simulation becomes increasingly promising, with significant implications for quantum many-body physics and quantum chemistry. Despite being one of the most accessible simulation methods, the product formula encounters challenges due to the pessimistic gate count estimation. In this work, we elucidate how observable knowledge can accelerate quantum simulations. By focusing on specific families of observables, we reduce product-formula simulation errors and gate counts in both short-time and arbitrary-time scenarios. Our advanced error analyses, supported by numerical studies, indicate improved gate count estimation. We anticipate that the explored speed-ups can pave the way for efficiently realizing quantum simulations and demonstrating advantages on near-term quantum devices.


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