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The intra-cluster correlation coefficient (ICC) plays an important role while designing the cluster randomized trials (CRTs). Often optimal CRTs are designed assuming that the magnitude of the ICC is constant across the clusters. However,…

统计计算 · 统计学 2019-02-21 Satya Prakash Singh , Pradeep Yadav

A new class of self-similar ordered structures with non-crystallographic point symmetries is presented. Each of these structures, named superquasicrystals, is given as a section of a higher-dimensional "crystal" with recursive superlattice…

材料科学 · 物理学 2007-05-23 Komajiro Niizeki , Nobuhisa Fujita

Time quasicrystals (TQCs) represent a compelling extension of the concept of time crystals (TCs). While TCs break discrete time-translation symmetry by exhibiting a periodic response at a subharmonic of the driving frequency, TQCs display a…

强关联电子 · 物理学 2025-10-28 Davood Marripour , Jahanfar Abouie

Despite the growing popularity of explainable and interpretable machine learning, there is still surprisingly limited work on inherently interpretable clustering methods. Recently, there has been a surge of interest in explaining the…

机器学习 · 计算机科学 2024-11-26 Maximilian Fleissner , Leena Chennuru Vankadara , Debarghya Ghoshdastidar

We study the spontaneous crystallization of an assembly of highly monodisperse steel spheres under shaking, as it evolves from localized icosahedral ordering towards a packing reaching crystalline ordering. Towards this end, real space…

软凝聚态物质 · 物理学 2018-12-06 Indu Dhiman , Simon A. J. Kimber , Anita Mehta , Tapan Chatterji

This research demonstrates that Ising machines can effectively solve optimal elemental configuration searches in crystals, with Au-Cu alloys serving as an example. The energy function is derived using the cluster expansion method in the…

材料科学 · 物理学 2025-03-13 Kazuhide Ichikawa , Satoru Ohuchi , Koki Ueno , Tomoyasu Yokoyama

Topological properties of crystals and quasicrystals is a subject of recent and growing interest. This Letter reports an experiment where, for certain quasicrystals, these properties can be directly retrieved from diffraction. We directly…

介观与纳米尺度物理 · 物理学 2017-12-06 A. Dareau , E. Levy , M. Bosch Aguilera , R. Bouganne , E. Akkermans , F. Gerbier , J. Beugnon

Almost all observed square-triangle quasicrystals in soft-matter systems contain a large number of point-like defects, yet the role these defects play in stabilizing the quasicrystal phase remains poorly understood. In this work, we…

软凝聚态物质 · 物理学 2026-02-04 Alptuğ Ulugöl , Giovanni Del Monte , Eline K. Kempkes , Frank Smallenburg , Laura Filion

Hyperuniform systems, which include crystals, quasicrystals and special disordered systems, have attracted considerable recent attention, but rigorous analyses of the hyperuniformity of quasicrystals have been lacking because the support of…

统计力学 · 物理学 2017-03-01 Erdal C. Oğuz , Joshua E. S. Socolar , Paul J. Steinhardt , Salvatore Torquato

We study the design of interactive clustering algorithms for data sets satisfying natural stability assumptions. Our algorithms start with any initial clustering and only make local changes in each step; both are desirable features in many…

数据结构与算法 · 计算机科学 2015-03-23 Pranjal Awasthi , Maria-Florina Balcan , Konstantin Voevodski

We give a new construction of the incipient infinite cluster (IIC) associated with high-dimensional percolation in a broad setting and under minimal assumptions. Our arguments differ substantially from earlier constructions of the IIC; we…

概率论 · 数学 2025-02-18 Shirshendu Chatterjee , Pranav Chinmay , Jack Hanson , Philippe Sosoe

In this paper, a technique for constructing quasiperiodic structures is suggested, which allows one by the assigned matching to restore the atoms density distribution formula of a corresponding quasicrystal. The algorithm to restore the…

无序系统与神经网络 · 物理学 2007-05-23 Vadim Gulyaev

The development of new materials typically involves a process of trial and error, guided by insights from past experimental and theoretical findings. The inverse design approach for soft-matter systems has the potential to optimize specific…

Commensurability is of paramount importance in numerous strongly interacting electronic systems. In the Fractional Quantum Hall effect, a rich cascade of increasingly narrow plateaux appear at larger denominator filling fractions. Rich…

强关联电子 · 物理学 2016-07-20 Eran Sagi , Zohar Nussinov

The iterative qubit coupled cluster (iQCC) method is a systematic variational approach to solve the electronic structure problem on universal quantum computers. It is able to use arbitrarily shallow quantum circuits at expense of iterative…

量子物理 · 物理学 2020-09-30 Ilya G. Ryabinkin , Artur F. Izmaylov , Scott N. Genin

As computers get faster, researchers -- not hardware or algorithms -- become the bottleneck in scientific discovery. Computational study of colloidal self-assembly is one area that is keenly affected: even after computers generate massive…

软凝聚态物质 · 物理学 2018-03-28 Matthew Spellings , Sharon C Glotzer

We propose In-Context Clustering (ICC), a flexible LLM-based procedure for clustering data from diverse distributions. Unlike traditional clustering algorithms constrained by predefined similarity measures, ICC flexibly captures complex…

机器学习 · 计算机科学 2025-10-10 Ying Wang , Mengye Ren , Andrew Gordon Wilson

Under irradiation, SiC develops damage commonly referred to as black spot defects, which are speculated to be self-interstitial atom clusters. To understand the evolution of these defect clusters and their impacts (e.g., through radiation…

材料科学 · 物理学 2017-05-26 Hyunseok Ko , Amy Kaczmarowski , Izabela Szlufarska , Dane Morgan

In previous approaches to form quasicrystals, multiple competing length scales involved in particle size, shape or interaction potential are believed to be necessary. It is unexpected that quasicrystals can be self-assembled by…

软凝聚态物质 · 物理学 2018-10-26 Mengjie Zu , Peng Tan , Ning Xu

Crystals are the materials which can be described by uniform periodic lattices. Traditionally, only the 1-, 2-, 3-, 4- and 6-fold rotation symmetries are allowed in crystals because other n-fold rotation symmetries are forbidden by the…

材料科学 · 物理学 2013-12-02 Chaoyu He , Jianxin Zhong