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2025国际基础科学大会（ICBS 2025）将于7月13日至25日在北京举行，主题为“聚焦基础科学，引领人类未来”。7月13日大会开幕暨颁奖典礼后，400余位国际顶尖科学家将与近千名海内外优秀学者、青年学子共聚北京雁栖湖应用数学研究院，展开为期两周的深度学术交流，共探基础科学最前沿。

6位2025基础科学终身成就奖得主——诺贝尔奖得主丁肇中（Samuel Chao Chung Ting）、朱棣文（Steven Chu）、戴维·乔纳森·格罗斯（David Jonathan Gross）,图灵奖得主罗伯特·恩德雷·塔扬（Robert Endre Tarjan）、菲尔兹奖得主森重文（Shigefumi Mori）以及沃尔夫奖得主乔治·卢斯蒂格（George Lusztig）将在大会期间带来精彩的基础科学报告，其中7月14日（星期一）3场，7月15日（星期二）3场。

国际基础科学大会始于2023年，由丘成桐院士担任大会主席，是国际基础科学领域的顶级学术盛会，重点围绕数学、物理、信息科学与工程三大基础科学领域展开学术研讨和交流。

本次大会上，享誉世界的科学家——6位基础科学终身成就奖得主、4位菲尔兹奖得主、3位诺贝尔奖得主、1位图灵奖得主，多位邵逸夫奖、沃尔夫奖、狄拉克奖、基础科学突破奖得主，多国数学会主席，以及数十位中外院士将出席盛会并发表高水平学术报告。

“返朴”作为本次大会合作媒体，将对大会多场高质量学术报告同步直播。由于许多报告同时进行，且场次甚多，难以一一尽播，播出日程也可能视需求改变，欢迎广大朋友关注返朴微信订阅号和返朴微信视频号，留意相关通知，不错过这场顶级学术盛会。

Basic Science Lecture

基础科学报告

8:30 am - 11:50 am

Monday

2025/07/14

时间：

7月14日上午8:30-9:30

地点：

BIMSA-A2 报告厅

题目：

Quantum Field Theory: Past, Present, and Future

摘要：

I shall review the development of Quantum Field Theory from the early days of Quantum Mechanics, through the present and speculate on developments in the future.

时间：

7月14日上午9:40-10:40

地点：

BIMSA-A2 报告厅

题目：

The November Revolution and Fifty Years of Electron and Positron Physics

摘要：

The discovery of the J particle by the MIT group in November 1974 transformed our understanding of particle physics. This breakthrough is widely known as the “November Revolution” in the field. In this lecture, I will present the evolution of experimental methods and instrumentation for electron-positron experiments at DESY, which culminated in the J particle experiment at Brookhaven National Laboratory. The goal of the experiment was to search for massive photons (vector mesons) beyond the three traditionally known ones with masses around 1 GeV. This required an exceptional signal-to-background rejection ratio of one in ten billion. I will also discuss follow-up high-energy experiments involving electrons and positrons, both terrestrial and space-based, conducted to test the electroweak theory and to explore the nature of dark matter and antimatter.

时间：

7月14日上午10:50-11:50

地点：

BIMSA-A2 报告厅

题目：

Selected Topics in my Random Walk in Science

摘要：

One of the most important choices facing scientists is how to decide what areas to study and what problems to work on. Edwin Land, the inventor of inexpensive plastic polarizers and the Polaroid instant photography camera, said he only undertook projects that were “manifestly important and nearly impossible.” My Ph.D. mentor urged me to only work on the most fundamental problems in physics. My view of science and my own scientific trajectory took many turns, beginning with my graduate student days at the University of California, Berkeley, and then Bell Laboratories, Stanford, Lawerence Berkeley National Lab, the Department of Energy, and my return to Stanford. This talk will discuss my science journey and the factors that shape what I choose to work on.

Basic Science Lecture

基础科学报告

8:30 am - 11:50 am

Tuesday

2025/07/15

时间：

7月15日上午8:30-9:30

地点：

BIMSA-A2 报告厅

题目：

From the Hartshorne Conjecture to the Minimal Model Program

摘要：

I am grateful to the ICBS for awarding the Basic Science Lifetime Award to me. On this occasion, I would like to explain how I contributed to the birational algebraic geometry, especially during the period from the 2-dimensional Minimal Model Program (MMP) and the Hartshorne Conjecture during the 1970s to the 3-dimensional MMP during the 1980s. The Hartshorne Conjecture (1970) or its differential geometric counterpart, the Frankel Conjecture (1961), is a special problem to characterize algebraic varieties which are positively curved in the strongest sense in Differential Geometry. The MMP, in contrast, is a general problem to birationally transform an algebraic variety into one with a certain simpler structure, which was not considered possible in dimension 3 or higher in the 1970s. After a partial result in the 3-dimensional case with H. Sumihiro in 1978, I solved the general case of the Hartshorne Conjecture by a method now called the Bend-and-Break in 1979, while the Frankel Conjecture was also solved by Y.T. Siu and S.T. Yau around the same time. My solution drew my attention to a certain weaker notion of being positively / negatively curved, since it did not use the full curvature assumption. In terms of this measure of positive/negative curvature, I could show in 1982 that an algebraic variety X is usually \"non-positively curved\" and if otherwise, there is a clear geometric reason, that is, the theory of extremal rays. In the former case X is called a minimal model, while in the latter it suggested that there might exist some conjectural procedure called the MMP to transform X into a minimal model or a variety with a Fano fibering. The MMP was soon formulated and developed by several people including M. Reid, Y. Kawamata, V. Shokurov, and J. Kollár on the basis of extremal rays and the notion of terminal/canonical singularities introduced by Reid. As for myself, I became attracted to a birational map called a flip and devoted myself to its computations around 1981 - 1987, which eventually resulted in the proof of the existence of flips in 1988. These altogether established the MMP for 3-dimensional varieties with terminal singularities. Later the MMP was vastly developed by C. Birkar, P. Cascini, C. Hacon, J. McKernan, and others. However these are beyond the scope of my presentation. Instead, I would like to touch if time permits on my joint work with Y. Prokhorov on our ongoing project to understand the 3-dimensional extremal contractions as explicitly as the surface case.

时间：

7月15日上午9:40-10:40

地点：

BIMSA-A2 报告厅

题目：

Canonical Bases in Lie Theory and Total Positivity

摘要：

Several objects in Lie theory (such as irreducible representations of simple Lie algebras) admit canonical bases with remarkable properties. We will try to explain this as well as the connection with the theory of total positivity in reductive Lie groups.

时间：

7月15日上午10:50-11:50

地点：

BIMSA-A2 报告厅

题目：

My Life with Data Structures

摘要：

This talk will be a historical survey of the speaker's work on the design and analysis of efficient algorithms and data structures. The talk will examine both general approaches, including the related concepts of amortization, self-adjustment, and competitiveness, and specific data structures, including compressed trees, splay trees, and efficient heaps.