Beyond uniform distribution

Abstract:The study of uniform distribution of sequences is more than a century old, with pioneering work by Hardy and Littlewood, Weyl, van der Corput and others. More recently, the focus of research has shifted to much finer quantities, such as the distribution of nearest neighbor gaps and the pair correlation function. Examples of interesting sequences for which these quantities have been stu...

报告人：Zeev Rudnick (Tel Aviv University)

Life on Earth: An Accident?

Abstract:The elements are generated in the Big Bang and in stars. In these reactions, a number of fine tunings appear, which have often been interpreted in the context of the anthropic principle. In this talk, I discuss a different view point and will answer the question: How much are the fundamental parameters of the Standard Model constrained by the abundances of the elements that are requir...

报告人：Ulf-G. Meißner (University of Bonn & FZJ)

Hydrodynamics of biaxial nematic liquid crystals: biaxial limit and well-posedness

Organizer: Chunmei SuAbstract:We consider a two-tensor hydrodynamics derived from the molecular model. Firstly, we prove the existence and uniqueness of local in time smooth solutions to the two-tensor system. Secondly, starting from the two-tensor hydrodynamics, by the Hilbert expansion we formally derive its biaixal limit, i.e., the frame hydrodynamics for the biaxial nematic phase, which is ...

报告人：Sirui Li (Guizhou University)

Quasi-entropy

Organizer: Chunmei SuAbstract: Liquid crystals are featured by local anisotropy usually described by angular moment tensors. The free energy of tensors needs a stabilizing entropy term. When non-axisymmetric molecules are involved, two classical approaches to write down an entropy term, quartic polynomial and maximum entropy state, both become too complicated. Meanwhile, the maximum entropy st...

报告人：Jie Xu (CAS)

Quantum multiple eigenvalue gaussian filtered search: An efficient and versatile quantum phase estimation method

Abstract: Quantum eigenvalue (phase) estimation is one of the most important quantum primitives. While numerous quantum algorithms have been proposed to tackle this problem, they often demand substantial quantum resources, making them impractical for early fault-tolerant quantum computers. The talk will begin with a quantum oracle that transforms the quantum eigenvalue estimation problem into a...

报告人：Zhiyan Ding (Morrey Assistant Professor at UC Berkeley)