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相关论文: Optimal Renormalization Group Transformation from …

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We show that artificial neural networks (ANNs) can, to high accuracy, determine the topological invariant of a disordered system given its two-dimensional real-space Hamiltonian. Furthermore, we describe a "renormalization-group" (RG)…

无序系统与神经网络 · 物理学 2022-06-22 Gilad Margalit , Omri Lesser , T. Pereg-Barnea , Yuval Oreg

First, we reformulate RG transformations in a recursive way with introduction of an order-parameter field. As a result, we manifest the RG flow of an effective field theory through the emergence of an extra dimensional space, where both RG…

强关联电子 · 物理学 2020-08-05 Ki-Seok Kim

Theoretical understanding of how deep neural network (DNN) extracts features from input images is still unclear, but it is widely believed that the extraction is performed hierarchically through a process of coarse-graining. It reminds us…

高能物理 - 理论 · 物理学 2018-05-16 Satoshi Iso , Shotaro Shiba , Sumito Yokoo

We introduce a picture to analyze the density matrix renormalization group (DMRG) numerical method from a quantum information perspective. This leads us to introduce some modifications for problems with periodic boundary conditions in which…

强关联电子 · 物理学 2007-05-23 F. Verstraete , D. Porras , J. I. Cirac

The renormalization group is a tool that allows one to obtain a reduced description of systems with many degrees of freedom while preserving the relevant features. In the case of quantum systems, in particular, one-dimensional systems…

量子物理 · 物理学 2009-11-13 Jose Gaite

While SGD, which samples from the data with replacement is widely studied in theory, a variant called Random Reshuffling (RR) is more common in practice. RR iterates through random permutations of the dataset and has been shown to converge…

机器学习 · 计算机科学 2022-02-07 Amirkeivan Mohtashami , Sebastian Stich , Martin Jaggi

Jamming occurs in granular materials, as well as in emulsions, dense suspensions, and other amorphous, particulate systems. When the packing fraction $\phi$, defined as the ratio of particle volume to system volume, is increased past a…

软凝聚态物质 · 物理学 2019-09-11 Abram H. Clark

Magnetic Resonance Imaging (MRI) is one of the most dynamic and safe imaging techniques available for clinical applications. However, the rather slow speed of MRI acquisitions limits the patient throughput and potential indi cations.…

计算机视觉与模式识别 · 计算机科学 2018-11-14 Risheng Liu , Yuxi Zhang , Shichao Cheng , Xin Fan , Zhongxuan Luo

We develop a multiscale approach to estimate high-dimensional probability distributions from a dataset of physical fields or configurations observed in experiments or simulations. In this way we can estimate energy functions (or…

统计力学 · 物理学 2024-12-24 Tanguy Marchand , Misaki Ozawa , Giulio Biroli , Stéphane Mallat

We present a new ab-initio method that uses similarity renormalization group (SRG) techniques to continuously diagonalize nuclear many-body Hamiltonians. In contrast with applications of the SRG to two- and three-nucleon interactions in…

核理论 · 物理学 2011-07-21 K. Tsukiyama , S. K. Bogner , A. Schwenk

The functional renormalisation group (fRG) has evolved into a versatile tool in condensed matter theory for studying important aspects of correlated electron systems. Practical applications of the method often involve a high numerical…

计算物理 · 物理学 2016-09-21 Daniel Rohe

Combinatorial optimization problems have a broad range of applications and map to physical systems with complex dynamics. Among them, the 3-SAT problem is prominent due to its NP-complete nature. In physics terms, its solution corresponds…

无序系统与神经网络 · 物理学 2025-12-19 Alexandru Ciobanu , David Dahmen , John Paul Strachan , Moritz Helias

Integrating information from various reference databases is a major challenge for Retrieval-Augmented Generation (RAG) systems because each knowledge source adopts a unique data structure and follows different conventions. Retrieving from…

机器学习 · 计算机科学 2025-01-28 Zijie Zhong , Hanwen Liu , Xiaoya Cui , Xiaofan Zhang , Zengchang Qin

In a recent paper, J. Chem. Phys. 162, 214101 (2025), a novel approach for the rigidification of a molecular cluster was proposed, in which starting with an all-atom (AA) potential, a coarse-grained (CG) potential for the associated cluster…

化学物理 · 物理学 2025-09-08 João V. M. Pimentel , Vladimir A. Mandelshtam

Deep Neural Networks have achieved remarkable success relying on the developing high computation capability of GPUs and large-scale datasets with increasing network depth and width in image recognition, object detection and many other…

机器学习 · 计算机科学 2020-01-08 E Zhenqian , Gao Weiguo

The Density Matrix Renormalization Group (DMRG) has become a powerful numerical method that can be applied to low-dimensional strongly correlated fermionic and bosonic systems. It allows for a very precise calculation of static, dynamical…

凝聚态物理 · 物理学 2007-05-23 Karen Hallberg

We present a renormalization-grouplike method performed in the state space for detecting the dynamical behaviors of large scale-free Boolean networks, especially for the chaotic regime as well as the edge of chaos. Numerical simulations…

无序系统与神经网络 · 物理学 2007-05-23 Wen-Xu Wang , Gang Yan , Jie Ren , Bing-Hong Wang

In the absence of a tree-level scalar-field mass, renormalization-group (RG) methods permit the explicit summation of leading-logarithm contributions to all orders of the perturbative series for the effective-potential functions utilized in…

高能物理 - 唯象学 · 物理学 2015-06-25 V. Elias , R. B. Mann , D. G. C. McKeon , T. G. Steele

Renormalization Group (RG) techniques have been successfully employed in quantum field theory and statistical physics. Here we apply RG methods to study the non-linear stages of structure formation in the Universe. Exact equations for the…

天体物理学 · 物理学 2010-10-27 Sabino Matarrese , Massimo Pietroni

We investigate the application of the density-matrix renormalization group (DMRG) algorithm to a one-dimensional harmonic oscillator chain and compare the results with exact solutions, aiming to improve the algorithm efficiency. It has been…

量子物理 · 物理学 2015-06-19 Yongjun Ma , Jiaxiang Wang , Xinye Xu , Qi Wei , Sabre Kais