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We present a quantum algorithm for simulating the wave equation under Dirichlet and Neumann boundary conditions. The algorithm uses Hamiltonian simulation and quantum linear system algorithms as subroutines. It relies on factorizations of…

量子物理 · 物理学 2019-12-24 Pedro C. S. Costa , Stephen Jordan , Aaron Ostrander

Inspired by Mott's (1929) analysis of particle tracks in a cloud chamber, we consider a simple model for quantum cosmology which includes, in the total Hamiltonian, model detectors registering whether or not the system, at any stage in its…

广义相对论与量子宇宙学 · 物理学 2009-10-31 J. J. Halliwell

The time division multiple access (TDMA) technique has been applied in automotive multiple-input multiple-output (MIMO) radar. However, it suffers from the transmit energy loss, and as a result the parameter estimation performance…

信号处理 · 电气工程与系统科学 2021-03-26 Feng Xu , Sergiy A. Vorobyov , Fawei Yang

Wideband direction of arrival (DOA) estimation techniques for sensors array have been studied extensively in the literature. Nevertheless, needing prior information on the number and directions of sources or demanding heavy computational…

信号处理 · 电气工程与系统科学 2020-06-15 Shervin Amirsoleimani , Ali Olfat

Hybrid dynamical systems, which include continuous flow and discrete mode switching, can model robotics tasks like legged robot locomotion. Model-based methods usually depend on predefined gaits, while model-free approaches lack explicit…

机器人学 · 计算机科学 2025-04-08 Hang Liu , Sangli Teng , Ben Liu , Wei Zhang , Maani Ghaffari

Diffusion Transformers (DiTs) achieve superior image generation quality but suffer from quadratic computational complexity relative to token count. While various token reduction (TR) methods have been proposed to mitigate this cost, they…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Hangyeol Lee , Hyojeong Lee , Joo-Young Kim

We introduce a residence-time approach (RTA) for determining position-dependent diffusivities from biased molecular dynamics simulations. The method is formulated for trajectory segments in which the effective drift along the transport…

软凝聚态物质 · 物理学 2026-04-03 Rinto Thomas , Praveen Ranganath Prabhakar , Michael von Domaros

Discrete-state denoising diffusion models led to state-of-the-art performance in graph generation, especially in the molecular domain. Recently, they have been transposed to continuous time, allowing more flexibility in the reverse process…

机器学习 · 计算机科学 2024-10-07 Antoine Siraudin , Fragkiskos D. Malliaros , Christopher Morris

Molecular dynamics simulations yield large amounts of trajectory data. For their durable storage and accessibility an efficient compression algorithm is paramount. State of the art domain-specific algorithms combine quantization, Huffman…

分布式、并行与集群计算 · 计算机科学 2016-01-13 Jan Huwald , Stephan Richter , Peter Dittrich

Diffusive molecular dynamics is a novel model for materials with atomistic resolution that can reach diffusive time scales. The main ideas of diffusive molecular dynamics are to first minimize an approximate variational Gaussian free energy…

数值分析 · 数学 2015-06-09 Gideon Simpson , Mitchell Luskin , David J. Srolovitz

This paper introduces a hypothetical hybrid control framework for port-Hamiltonian (p$\mathcal{H}$) systems, employing a dynamic decomposition based on Data-Assisted Control (DAC). The system's evolution is split into two parts with fixed…

系统与控制 · 电气工程与系统科学 2025-06-10 Mostafa Eslami , Maryam Babazadeh

In radiotherapy, the dose-volume histogram (DVH) curve is an important means of evaluating the clinical feasibility of tumor control and side effects in normal organs against actual treatment. Fractionation, distributing the amounts of…

医学物理 · 物理学 2024-09-05 Yusuke Anetai , Jun'ichi Kotoku

A deep-sea construction vessel is used to install underwater parts of an off-shore oil drilling platform at the designated locations on the seafloor. By using extended Hamilton's principle, a nonlinear PDE system governing the…

最优化与控制 · 数学 2020-07-23 Ji Wang , Miroslav Krstic

This article describes the discrete-time modeling approach for interturn short circuits in interior permanent magnet synchronous motors with concentrated windings that facilitate model-based fault diagnostics and mitigation. A…

系统与控制 · 电气工程与系统科学 2025-10-02 Lukas Zezula , Matus Kozovsky , Ludek Buchta , Petr Blaha

An efficient finite-difference time-domain (FDTD) algorithm is built to solve the transverse electric 2D Maxwell's equations with inhomogeneous dielectric media where the electric fields are discontinuous across the dielectric interface.…

计算物理 · 物理学 2023-07-14 Timothy Meagher , Bin Jiang , Peng Jiang

Particle-in-Cell (PIC) simulation is the most important numerical tool in plasma physics. However, its long-term accuracy has not been established. To overcome this difficulty, we developed a canonical symplectic PIC method for the…

等离子体物理 · 物理学 2016-01-20 Hong Qin , Jian Liu , Jianyuan Xiao , Ruili Zhang , Yang He , Yulei Wang , Yajuan Sun , Joshua W. Burby , Leland Ellison , Yao Zhou

In haptics, guaranteeing stability is essential to ensure safe interaction with remote or virtual environments. One of the most relevant methods at the state-of-the-art is the Time Domain Passivity Approach (TDPA). However, its high…

In this paper we propose a {\it discontinuous} plane wave neural network (DPWNN) method with $hp-$refinement for approximately solving Helmholtz equation and time-harmonic Maxwell equations. In this method, we define a quadratic functional…

数值分析 · 数学 2024-03-06 Long Yuan , Qiya Hu

We present a Hamiltonian formulation for the linearized Vlasov-Maxwell system with a Maxwellian background distribution function. We discuss the geometric properties of the model at the continuous level, and how to discretize the model in…

数值分析 · 数学 2025-12-08 Dominik Bell , Martin Campos Pinto , Stefan Possanner , Eric Sonnendrücker

Hybrid beamforming (HB) has emerged as a promising technology to support ultra high transmission capacity and with low complexity for Millimeter Wave (mmWave) multiple-input and multiple-output (MIMO) system. However, the design of digital…

信号处理 · 电气工程与系统科学 2020-01-10 Jiyun Tao , Jing Xing , Jienan Chen , Chuan Zhang , Shengli Fu