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05-13
2026
钙离子光频标进展
时 间：16:00-17:15, May 13, 2026 (Wed)地 点：RM 1-222, FIT Building内容：冷原子物理和激光技术的发展推动了原子光频的精密谱的进展。由此得到更精确的物理常数，在更高精度检验基本物理规律；并导致新的物理机理的认识和发现。同时推动时间频率标准发展和应用。本报告介绍我们囚禁冷却钙离子光频标研究进展。解决单离子的稳定囚禁和有效冷却、超窄线宽激光研制和实验环境影响（含电、磁、振动、温度等）等关键问题， 2...
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05-12
2026
Space-Efficient Quantum Algorithm for Elliptic Curve Discrete Logarithms with Resource Estimation
时 间：10:30-12:00, May 12, 2026 (Tue)地 点：RM S327, MMW Building内容：Solving the Elliptic Curve Discrete Logarithm Problem (ECDLP) is critical for evaluating the quantum security of widely deployed elliptic-curve cryptosystems. Consequently, minimizing the number of logical qubits required to execute this algorithm is a key object. In implementations of Shor's algorithm, the space comple...
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05-07
2026
Exponential quantum advantage in processing massive classical data
时 间：10:00-11:30, May 8, 2026 (Fri)地 点： RM S527, MMW Building内容：Broadly applicable quantum advantage, particularly in classical data processing and machine learning, has been a fundamental open problem. In this work, we prove that a small quantum computer of polylogarithmic size can perform large-scale classification and dimension reduction on massive classical data by processing sa...
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04-27
2026
Beyond Bell: falsifying direct causation
时 间：14:00-15:00, Apr 27, 2026 (Mon)地 点： RM S327, MMW Building内容：According to Reichenbach's criterion, correlations may come through two structures: common cause, or direct causation. For the case of correlations obtained by measuring entangled systems, Bell famously excluded any explanation relying only on a common cause. A few years ago, we first intuited [1,2] and then finally pr...
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04-21
2026
2,400镱原子光镊阵列的高效率装载
时 间：13:00-15:00, Apr 21, 2026 (Tue)地 点：Seminar Room 2, 19th Floor, Tower C, TusPark内容：中性原子阵列已成为量子计算、量子模拟和量子精密测量的重要平台。其中，类碱土原子展现出长相干时间、高保真度量子门和擦除误差转化等独特优势，但其阵列规模长期落后于碱金属原子。我们在光镊阵列中成功俘获2400个镱-174原子，并实现了83.5(1)%的单原子增强装载效率，打破碱土金属原子光镊阵列规模纪录。我们进一步发现...
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04-17
2026
Harnessing quantum physics for the next generation of continuously monitored sensors
演讲人：杨大猷 [中国科学技术大学]时 间：16:30-18:00, Apr 17, 2026 (Fri)地 点：RM 1-222, FIT Building内容：Continuous monitoring of driven-dissipative quantum optical systems provides key strategies for the implementation of quantum metrology, with prominent examples ranging from the gravitational wave detectors to the emergent driven-dissipative many-body sensors. Nevertheless, fundamental ...