25 papers · ranked by Valyu relevance
Christopher Leon, Alexander Scheinker
We utilize a Fourier transformation-based representation of Maxwell’s equations to develop physics-constrained neural networks for electrodynamics without gauge ambiguity, which we label the Fourier-Helmholtz-Maxwell neural operator method. In this approach, both of Gauss’s laws and Faraday’s law are built in as hard…
Yanfeng Zhao, Zhiqiang Zheng, Jiaxin Liu, Xinyi Dong + 4 more
'Anping Wu' 'Qing Shi' 'Huaping Wang'] Digital microfluidic chips (DMCs) have shown huge potential for biochemical analysis applications due to their excellent droplet manipulation capabilities. The driving force is a critical factor for characterizing and optimizing the performance of droplet manipulation. Conducting…
Daiju Nakayama, Kin-ya Oda, Koichiro Yasuda
The theoretical framework of electromagnetism played a foundational role in Einstein's development of special relativity. To support conceptual understanding, we present a fully special relativistic computer simulation that visualizes electromagnetic fields from the perspective of a moving observer. In this simulation…
J. H. Jeong, Young-Geun Kim, Sungjae Bae, SungWoo Youn
The axion is a hypothetical particle motivated to address the strong CP problem, and is one of the appealing dark matter candidates. Numerous experimental searches for dark matter axions have been proposed relying on their coupling with photons. The classical equations of motion for the axion-photon coupling are well…
Xi Liu, Wenxi Fang, Ken Perlin
Classical neuronal cable theory relies on quasi-static electric field approximations and neglects magnetic induction, Lorentz force coupling, and transient electromagnetic currents, limiting its ability to fully characterize action potential propagation within geometrically branched axons and dendrites. This work…
Neri Niccolai, Edoardo Morandi, Davide Alocci, Alberto Toccafondi + 1 more
Living systems cannot rely on random intermolecular approaches inside cell crowding and hidden mechanisms must be present to favor only those molecular interactions which are specifically required by biological functions. Electromagnetic messaging among proteins is here hypothesized upon the observation that charged…
Marek Florkowski
This paper presents original measurement methodology and detection approach to determine the influence of the magnetic field on the partial discharge (PD) dynamics. The application areas refer to insulation systems of both grid and industrial network devices and emerging segments such as high-speed rail, electric…
M. E. Dieckmann
We investigate the collisionless interaction between an electron-positron pair plasma and a magnetized electron-proton plasma using a three-dimensional particle-in-cell simulation. Our aim is to resolve the early stage of the formation of a discontinuity separating the inner cocoon formed by shocked pair plasma from…
Dmytro Sydorenko, Igor Kaganovich, Alexander V. Khrabrov, S. Ethier + 2 more
'J. Chen' 'Salomon Janhunen'] A two-dimensional particle-in-cell code for simulation of low-frequency electromagnetic processes in laboratory plasmas has been developed. The code uses the Darwin method omitting the electromagnetic wave propagation. The Darwin method separates the electric field into solenoidal and…
Xu Zhang, Xin An, V. Angelopoulos, Anton Artemyev + 2 more
Seen in Particle-In-Cell Simulations Authors: ['Xu Zhang' 'Xin An' 'V. Angelopoulos' 'Anton Artemyev' 'Xiaojia Zhang' 'Y. D. Jia'] - Electron cyclotron harmonic (ECH) and electron acoustic waves are excited by an electron beam in a 2-D particle-in-cell simulation. - Beam electrons are thermalized and cold electrons are…
Deping Hu, Pengfei Huo
We present a mixed quantum-classical simulation of po- lariton dynamics for molecule-cavity hybrid systems. In particular, we treat the coupled electronic-photonic de- grees of freedom (DOFs) as the quantum subsystem and the nuclear DOFs as the classical subsystem and use the trajectory surface hopping approach to…
L. Neri, L. Celona
A new plasma heating mechanism for Microwave Discharge Ion Sources (MDIS) was discovered. Unprecedented beam stability was observed during the commissioning of the Proton Source for the European Spallation Source (PS-ESS) where several thousand source configurations were tested using a custom software tool. Data…
Karanpartap Singh, Benjamin G. Hawkins
Electrowetting is an electrokinetic effect whereby an applied electric field induces changes in the measured contact angle at a fluid-surface contact line. On hydrophobic, dielectric electrode surfaces, this effect generates droplet motion termed “electrowetting on dielectric” or EWOD. Applications of this phenomenon…
Si-jun Kim, Sang-ho Lee, Ye-bin You, Young-seok Lee + 5 more
'Chul-hee Cho' 'Jang-jae Lee' 'Shin-jae You' 'Bruno Goncalves'] As the importance of measuring electron density has become more significant in the material fabrication industry, various related plasma monitoring tools have been introduced. In this paper, the development of a microwave probe, called the measurement of…
Karoline Horgmo Jæger, Aslak Tveito
During each heartbeat, a voltage wave propagates through the cardiac muscle, triggering action potentials in approximately two billion cardiomyocytes. This electrical activity ensures the coordinated contraction of the heart, which is essential for its pumping function. A key event in this process is the opening of…
Mario Merino, Juan Martín-Hernández, Pedro Jiménez-Jiménez, Luis Chacón
A fraction of the electromagnetic power used to generate and heat the plasma in helicon sources and electrodeless plasma thrusters can leak into the outer expansion region, interacting with the plasma in the magnetic nozzle and affecting the performance of the device. This work analyzes the properties of the plasma in…
J. Skacel, Pietro Parodi, Giuseppe Gangemi, Federico Bariselli + 2 more
The residual atmospheric drag on satellites in Very Low Earth Orbit (VLEO) has been recognized as a limiting factor for satellite lifetimes. This work focuses on one component of the drag, i.e., the ionospheric drag from charged particles, which was observed to influence the overall aerodynamics of satellites. Space…
Arkajit Mandal, Michael Taylor, Braden Weight, Eric Koessler + 2 more
When molecules are coupled to an optical cavity, new light-matter hybrid states, so-called polaritons, are formed due to quantum light-matter interactions. With the experimental demonstrations of modifying chemical reactivities by forming polaritons under strong light-matter interactions, theorists have been encouraged…
Authors not listed
Molecular polaritons are hybrid states formed by the quantum mechanical interaction between light and matter. Recent experiments have shown the ability to drastically modify chemical reactions in both the ground and excited states through the hybridization of the electronic and photonic degrees of freedom. Ab initio…
Authors not listed
Electrified solid-liquid interfaces play a crucial role in energy conversion, storage, photoconversion, sensors, and corrosion processes. While computational chemistry simulations can provide detailed insight into reaction mechanisms, aligning experimental and simulation results remains a significant challenge. In…
Wanghuai Zhou, Deping Hu, Arkajit Mandal, Pengfei Huo
We derive a rigorous nuclear gradient for a molecule-cavity hybrid system using the Quantum Electrodynamics Hamiltonian. We treat the electronic-photonic DOFs as the quantum subsystem, and the nuclei as the classical subsystem. Using the adiabatic basis for the electronic DOF and the Fock basis for the photonic DOF…
Nam Vu, Daniel Mejia-Rodriguez, Nicholas Bauman, Ajay Panyala + 3 more
Polariton chemistry has attracted great attention as a potential route to modify chemical structure, properties, and reactivity through strong interactions between molecular electronic, vibrational, or rovibrational degrees of freedom. A rigorous theoretical treatment of molecular polaritons requires the treatment of…
Feng Bin, Chuanfei Yao, Jixiang Feng, Fangwei Liang + 1 more
Corona discharge is a typical discharge in gas-insulated equipment; however, the correlation between microscopic discharge process and macroscopic electromagnetic (EM) wave signals excited by discharge remains unclear. Therefore, this study innovatively employs the space current pulse as a bridge to reveal their…
Authors not listed
Electrochemiluminescence (ECL) is a vital analytical technique widely used in immunosensing and emerging applica-tions in biological imaging. Traditional ECL simulations rely on finite element methods, which provide valuable insights into reaction dynamics and spatial distribution of species. However, such methods are…
Joyce Reimer, Sebastián A. Domínguez-Rivera, Joakim Sundnes, Raymond J. Spiteri
The refractory period of cardiac tissue can be quantitatively described using strength-interval (SI) curves. The information captured in SI curves is pertinent to the design of anti-arrhythmic devices including pacemakers and implantable cardioverter defibrillators. As computational cardiac modelling becomes more…