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The properties of quantum-chromo dynamics (QCD) nowadays are accessable by lattice QCD calculations at vanishing quark chemical potential $\mu_q$=0 but often lack a transparent physical interpretation. In this review we report about results…

高能物理 - 唯象学 · 物理学 2016-05-24 Hamza Berrehrah , Elena Bratkovskaya , Thorsten Steinert , Wolfgang Cassing

Determining brain hemodynamics plays a critical role in the diagnosis and treatment of various cerebrovascular diseases. In this work, we put forth a physics-informed deep learning framework that augments sparse clinical measurements with…

医学物理 · 物理学 2021-08-27 Mohammad Sarabian , Hessam Babaee , Kaveh Laksari

We derive two path integral estimators for the derivative of the quantum mechanical potential of mean force (PMF), which may be numerically integrated to yield the PMF. For the first estimator, we perform the differentiation on the exact…

化学物理 · 物理学 2021-10-08 Dmitri Iouchtchenko , Kevin P. Bishop , Pierre-Nicholas Roy

In this contribution, we compute the $^1$H nuclear magnetic resonance (NMR) relaxation rate of liquid water at ambient conditions. We are using structural and dynamical information from Coupled Cluster Molecular Dynamics (CCMD) trajectories…

Coarse-grained molecular dynamics (CGMD) is a technique developed as a concurrent multiscale model that couples conventional molecular dynamics (MD) to a more coarse-grained description of the periphery. The coarse-grained regions are…

材料科学 · 物理学 2009-11-11 Robert E. Rudd , Jeremy Q. Broughton

Computational fluid dynamics (CFD) studies have been increasingly used for blood flow simulations in intracranial aneurysms (ICAs). However, despite the continuous progress of body-fitted CFD solvers, generating a high quality mesh is still…

计算工程、金融与科学 · 计算机科学 2020-07-28 D. S. Lampropoulos , G. C. Bourantas , B. F. Zwick , G. C. Kagadis , A. Wittek , K. Miller , V. C. Loukopoulos

Massively parallel computer architectures create new opportunities for the performance of long-timescale molecular dynamics (MD) simulations. Here, we introduce the path-accelerated molecular dynamics (PAMD) method that takes advantage of…

计算物理 · 物理学 2021-01-11 Jorge L. Rosa-Raíces , Bin Zhang , Thomas F. Miller

Quantum computing holds great promise to accelerate scientific computations in fluid dynamics and other classical physical systems. While various quantum algorithms have been proposed for linear flows, developing quantum algorithms for…

流体动力学 · 物理学 2025-02-25 Boyuan Wang , Zhaoyuan Meng , Yaomin Zhao , Yue Yang

The hybrid kinetic-ion fluid-electron plasma model is widely used to study challenging multi-scale problems in space and laboratory plasma physics. Here, a novel conservative scheme for this model employing implicit particle-in-cell…

等离子体物理 · 物理学 2022-04-13 A. Stanier , L. Chacon

Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) has become a major tool in the analysis of adsorption of nanometric objects, such as proteins, viruses, liposomes and inorganic particles from the solution. While in vacuum…

软凝聚态物质 · 物理学 2024-07-11 Alexander M. Leshansky , Itzhak Fouxon , Boris Y. Rubinstein

Computational fluid dynamics (CFD) simulations are broadly applied in engineering and physics. A standard description of fluid dynamics requires solving the Navier-Stokes (N-S) equations in different flow regimes. However, applications of…

计算工程、金融与科学 · 计算机科学 2021-12-14 Shen Wang , Mehdi Nikfar , Joshua C. Agar , Yaling Liu

This paper describes the results of our theoretical and numerical studies of hydrodynamic interactions in a suspension of spherical particles confined between two parallel planar walls, under creeping-flow conditions. We propose a novel…

软凝聚态物质 · 物理学 2009-11-11 S. Bhattacharya , J. Blawzdziewicz , E. Wajnryb

The vibrational motion of molecules in dissipative environments, such as solvation and protein molecules, is composed of contributions from both intermolecular and intramolecular modes. The existence of these collective modes introduces…

软凝聚态物质 · 物理学 2020-04-16 Seiji Ueno , Yoshitaka Tanimura

Heavy-ion collisions are well described by a dynamical evolution with a long hydrodynamical phase. In this phase the properties of the strongly coupled quark-gluon plasma are reflected in the equation of state (EoS) and the transport…

核理论 · 物理学 2018-12-06 A. Dubla , S. Masciocchi , J. M. Pawlowski , B. Schenke , C. Shen , J. Stachel

A quantum simulation of vibrational strong coupling (VSC) in the collective regime via thermostatted ring-polymer molecular dynamics (TRPMD) is reported. For a collection of liquid-phase water molecules resonantly coupled to a single…

化学物理 · 物理学 2022-03-08 Tao E. Li , Abraham Nitzan , Sharon Hammes-Schiffer , Joseph E. Subotnik

The emergence of a special type of fluid-like behavior at large scales in one-dimensional (1d) quantum integrable systems, theoretically predicted in 2016, is established experimentally, by monitoring the time evolution of the in situ…

量子气体 · 物理学 2019-03-07 Max Schemmer , Isabelle Bouchoule , Benjamin Doyon , Jerome Dubail

Smoothed Dissipative Particle Dynamics (SDPD) is a mesoscopic particle method which allows to select the level of resolution at which a fluid is simulated. The numerical integration of its equations of motion still suffers from the lack of…

统计力学 · 物理学 2017-10-25 Gérôme Faure , Gabriel Stoltz

One manifestation of quantum chaos is a random-matrix-like fine-grained energy spectrum. Prior to the inverse level spacing time, random matrix theory predicts a `ramp' of increasing variance in the connected part of the spectral form…

统计力学 · 物理学 2022-03-15 Michael Winer , Brian Swingle

In this paper we consider the one dimensional quantum hydrodynamics (QHD) system, with a genuine hydrodynamic approach. The global existence of weak solutions with large data has been obtained in [2, 3], in several space dimensions, by…

偏微分方程分析 · 数学 2021-01-26 Paolo Antonelli , Pierangelo Marcati , Hao Zheng

Turbulent flows under transcritical conditions are present in regenerative cooling systems of rocker engines and extraction processes in chemical engineering. The turbulent flows and the corresponding heat transfer phenomena in these…

流体动力学 · 物理学 2017-12-08 Peter C. Ma , Xiang I. A. Yang , Matthias Ihme