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As electric grids experience high penetration levels of renewable generation, fundamental changes are required to address real-time situational awareness. This paper uses unique traits of tensors to devise a model-free situational awareness…

系统与控制 · 电气工程与系统科学 2020-04-14 Ahmed S. Zamzam , Yajing Liu , Andrey Bernstein

In this paper, we calculate the entanglement negativity in free-fermion systems by use of the overlap matrices. For a tripartite system, if the ground state can be factored into triples of modes, we show that the partially transposed…

统计力学 · 物理学 2016-05-23 Po-Yao Chang , Xueda Wen

An efficient algorithm is constructed for contracting two-dimensional tensor networks under periodic boundary conditions. The central ingredient is a novel renormalization step that scales linearly with system size, i.e. from $L \to L+1$.…

We study the occurrence of spontaneous symmetry breaking (SSB) for O(N) models using functional renormalization group techniques. We show that even the local potential approximation (LPA) when treated exactly is sufficient to give…

高能物理 - 理论 · 物理学 2015-07-17 N. Defenu , P. Mati , I. G. Marian , I. Nandori , A. Trombettoni

Due to the explosive growth of large-scale data sets, tensors have been a vital tool to analyze and process high-dimensional data. Different from the matrix case, tensor decomposition has been defined in various formats, which can be…

最优化与控制 · 数学 2023-12-27 Rachel Grotheer , Shuang Li , Anna Ma , Deanna Needell , Jing Qin

Although tensor network states constitute a broad range of exotic quantum states, their realization is challenging and often requires resources whose depth scales with system size. In this work, we explore criteria on the local tensors for…

量子物理 · 物理学 2024-04-29 Rahul Sahay , Ruben Verresen

Truncated backpropagation through time (TBPTT) is a popular method for learning in recurrent neural networks (RNNs) that saves computation and memory at the cost of bias by truncating backpropagation after a fixed number of lags. In…

机器学习 · 计算机科学 2019-07-03 Christopher Aicher , Nicholas J. Foti , Emily B. Fox

We exploit the intrinsic difference between disordered and crystalline solids to create systems with unusual and exquisitely tuned mechanical properties. To demonstrate the power of this approach, we design materials that are either…

软凝聚态物质 · 物理学 2015-02-16 Carl P. Goodrich , Andrea J. Liu , Sidney R. Nagel

Given observations of a physical system, identifying the underlying non-linear governing equation is a fundamental task, necessary both for gaining understanding and generating deterministic future predictions. Of most practical relevance…

数值分析 · 数学 2020-03-02 A. Goeßmann , M. Götte , I. Roth , R. Sweke , G. Kutyniok , J. Eisert

Understanding the equilibrium properties and out of equilibrium dynamics of quantum field theories are key aspects of fundamental problems in theoretical particle physics and cosmology. However, their classical simulation is highly…

量子物理 · 物理学 2023-12-21 Philipp Schmoll , Jan Naumann , Alexander Nietner , Jens Eisert , Spyros Sotiriadis

We propose a loop optimization algorithm based on nuclear norm regularization for tensor network. The key ingredient of this scheme is to introduce a rank penalty term proposed in the context of data processing. Compared to standard…

统计力学 · 物理学 2024-11-07 Kenji Homma , Tsuyoshi Okubo , Naoki Kawashima

The complexity of quantum many-body systems is manifested in the vast diversity of their correlations, making it challenging to distinguish the generic from the atypical features. This can be addressed by analyzing correlations through…

量子物理 · 物理学 2023-09-04 Daniel Haag , Flavio Baccari , Georgios Styliaris

Tensor network methods are powerful tools for studying quantum many-body systems. In this paper, we investigate the emergent statistical properties of random high-dimensional tensor-network states and the trainability of variational tensor…

量子物理 · 物理学 2023-05-23 Zidu Liu , Qi Ye , Li-Wei Yu , L. -M. Duan , Dong-Ling Deng

Correlation functions and entanglement are two different aspects to characterize quantum many-body states. While many correlation functions are experimentally accessible, entanglement entropy (EE), the simplest characterization of quantum…

强关联电子 · 物理学 2022-12-20 Zhiyuan Yao , Lei Pan , Shang Liu , Pengfei Zhang

Tensor-ring decomposition of tensors plays a key role in various applications of tensor network representation in physics as well as in other fields. In most heuristic algorithms for the tensor-ring decomposition, one encounters the problem…

计算物理 · 物理学 2020-04-15 Hyun-Yong Lee , Naoki Kawashima

We show that any matrix product state (MPS) can be exactly represented by a recurrent neural network (RNN) with a linear memory update. We generalize this RNN architecture to 2D lattices using a multilinear memory update. It supports…

量子物理 · 物理学 2023-10-02 Dian Wu , Riccardo Rossi , Filippo Vicentini , Giuseppe Carleo

The infinite Projected Entangled-Pair State (iPEPS) algorithm is one of the most efficient techniques for studying the ground-state properties of two-dimensional quantum lattice Hamiltonians in the thermodynamic limit. Here, we show how the…

强关联电子 · 物理学 2018-04-04 Saeed S. Jahromi , Roman Orus , Mehdi Kargarian , Abdollah Langari

It is well known that an exponentially localized Hamiltonian must be gapless if its ground state has algebraic correlations. We show that even certain exponentially decaying correlations can imply gaplessness. This is exemplified by the…

强关联电子 · 物理学 2025-04-29 Rahul Sahay , Curt von Keyserlingk , Ruben Verresen , Carolyn Zhang

We present a tree-tensor-network-state (TTNS) method study of the ionic-neutral curve crossing of LiF. For this ansatz, the long-range correlation deviates from the mean-field value polynomially with distance, thus for quantum chemical…

化学物理 · 物理学 2014-03-06 V. Murg , F. Verstraete , R. Schneider , P. R. Nagy , O. Legeza

Recent advances in IoT and biometric sensing technologies have led to the generation of massive and high-dimensional tensor data, yet achieving accurate and efficient low-rank approximation remains a major challenge. Most existing tensor…

机器学习 · 计算机科学 2025-11-03 Hiroki Hasegawa , Yukihiko Okada