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09-24
2026
Quantum Computing and Quantum Advantage
时 间：11:00-12:00, Sep 24, 2026 (Thu)地 点：RM 1-202, FIT Building内容：Quantum computers have the potential to solve problems that are intractable for classical computers. However, building a universal, fault-tolerant quantum computer remains a significant technological challenge. Before fully fledged quantum computers become available, a more immediate question is what can be achieved wi...
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09-16
2026
Towards a Doubly Efficient IP = PSPACE
时 间：16:00-17:00, Sep 16, 2026 (Wed)地 点：RM 1-222, FIT Building内容：We show that every language in PSPACE that is decidable by a Turing machine in time T(n)=n^{O(log n)} admits a doubly efficient interactive proof system: the prover runs in time polynomial in T(n), and the verifier runs in time polynomial in n. This extends the best previously known regime for such proof systems from T...
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09-16
2026
BitGC: Garbled Circuits with 1 Bit per Gate
时 间：10:00-11:00, Sep 14, 2026 (Mon)地 点：RM 1-222, FIT Building内容：This talk introduces BitGC, a computationally efficient construction for rate-one garbling based on Ring-LWE with key-dependent-message security. The garbling consists of an SWHE-encrypted seed and one bit of stitching information per gate. Its computation requires homomorphically expanding the seed using a low-depth P...
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09-14
2026
Designing AI Infrastructure as an Integrated Whole
时 间：10:00-11:00, Sep 14, 2026 (Mon)地 点：https://meeting.tencent.com/dm/kMlAAN2VkyZ8 #腾讯会议：554-221-000内容：Modern AI infrastructure combines specialized training runtimes, GPU kernels, and communication libraries. Optimizing these components individually, however, does not necessarily meet end-to-end requirements for performance and reliability. My research examines these requirem...
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09-09
2026
State retrieval beyond Bayes’ retrodiction and reverse processes
时 间：15:00-17:00, Sep 9, 2026 (Wed)地 点：MMW-727会议室 (腾讯会议： 422-776-136)内容：In the context of irreversible dynamics, the meaning of the reverse of a physical evolution can be quite ambiguous. It is a standard choice to define the reverse process using Bayes' theorem, but, in general, this is not optimal with respect to the relative entropy of recovery. In this work we explore wh...
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09-08
2026
通过自我演进的操作系统层虚拟化大模型智能体
时 间：10:00-12:00, Sep 8, 2026 (Tue)地 点：RM 1-202, FIT Building内容：AI 应用已经从单一、单体的基础模型（FM）转向复合型智能体系统。然而，今天的技术栈仍然是碎片化的：即便协议（如 MCP、A2A）缓解了工具/智能体连接问题，每个框架仍内嵌了一个隐式运行时，用于处理状态、记忆、预算和护栏，这使得行为不可移植，治理也变得脆弱。这与操作系统出现之前的计算环境如出一辙，那时每个程序都要重新实现基本服务。本...