English
Related papers

Related papers: Sequential Flipping: A Donor-Acceptor Exchange Mec…

200 papers

We present a new interatomic potential for water captured in a charge-transfer embedded atom method (EAM) framework. The potential accounts for explicit, dynamical charge transfer in atoms as a function of the local chemical environment. As…

Materials Science · Physics 2007-05-23 Krishna Muralidharan , Steven M. Valone , Susan R. Atlas

A wide range of practically important problems is nowadays efficiently solved using artificial neural networks. This gave momentum to intensive development of their optical implementations, among which, the so-called diffractive neural…

We use transition path sampling to study evaporation in the SPC/E model of liquid water. Based on thousands of evaporation trajectories, we characterize the members of the transition state ensemble (TSE), which exhibit a liquid-vapor…

Soft Condensed Matter · Physics 2014-09-05 Patrick Varilly , David Chandler

Distributed optical fiber acoustic sensing (DAS) is a rapidly-developed seismic acquisition technology with advantages of low cost, high resolution, high sensitivity, and small interval, etc. Nonetheless, consecutively missing cases often…

Geophysics · Physics 2024-04-23 Ming Cheng , Jun Lin , Xintong Dong , Shaoping Lu , Tie Zhong

The Transformer architecture is widely used in natural language processing. Despite its success, the design principle of the Transformer remains elusive. In this paper, we provide a novel perspective towards understanding the architecture:…

Machine Learning · Computer Science 2019-06-10 Yiping Lu , Zhuohan Li , Di He , Zhiqing Sun , Bin Dong , Tao Qin , Liwei Wang , Tie-Yan Liu

High-resolution quasi-elastic neutron scattering spectroscopy was used to measure H2O and D2O hydrated RNA samples. The contribution of scattering from RNA was subtracted out by taking the difference of the signals between the two samples.…

Biological Physics · Physics 2007-05-23 Xiang-qiang Chu , Emiliano Fratini , Piero Baglioni , Antonio Faraone , Sow-Hsin Chen

We propose an OAM sorter based on a novel optical element that we refer to as a wavefront twister. It is a generalization of the conventional wavefront rotators such as the Dove prism. However, unlike a Dove prism, which simply rotates a…

Optics · Physics 2026-05-01 Suman Karan , Swati Chaudhary , Harshwardhan Wanare , Anand Kumar Jha

While reversibility is a fundamental concept in thermodynamics, most reactions are not readily reversible, especially in solid state physics. For example, thermal diffusion is a widely known concept, used among others to inject dopant atoms…

Determining the structure of water adsorbed on solid surfaces is a notoriously difficult task, and pushes the limits of experimental and theoretical techniques. Here, we follow the evolution of water agglomerates on Fe3O4(001); a complex…

We present here a formally exact model for electronic transitions between an initial (donor) and final (acceptor) states linked by an intermediate (bridge) state. Our model incorporates a common set of vibrational modes that are coupled to…

Materials Science · Physics 2016-03-28 E. R. Bittner

Layered semiconductors show promise as channel materials for field-effect transistors (FETs). Usually, such devices incorporate solid back or top gate dielectrics. Here, we explore de-ionized (DI) water as a solution top gate for…

Mesoscale and Nanoscale Physics · Physics 2017-06-01 Yuan Huang , Eli Sutter , Peter Sutter

Electron transfer (ET) in biological molecules such as peptides and proteins consists of electrons moving between well defined localized states (donors to acceptors) through a tunneling process. Here we present an analytical model for ET by…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 Solmar Varela , Iskra Zambrano , Bertrand Berche , Vladimiro Mujica , Ernesto Medina

We demonstrate single dopant implantation into the channel of a silicon nanoscale metal-oxide-semiconductor field-effect-transistor. This is achieved by monitoring the drain current modulation during ion irradiation. Deterministic doping is…

Current dynamic networks and dynamic pruning methods have shown their promising capability in reducing theoretical computation complexity. However, dynamic sparse patterns on convolutional filters fail to achieve actual acceleration in…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Changlin Li , Guangrun Wang , Bing Wang , Xiaodan Liang , Zhihui Li , Xiaojun Chang

I have investigated the structural and dynamic properties of water by performing a series of molecular dynamic simulations in the range of temperatures from 213 K to 360 K, using the Simple Point Charge-Extended (SPC/E) model. I performed…

Soft Condensed Matter · Physics 2010-02-23 M. G. Campo

We introduce the formalism to describe heavy-ion Double-Charge-Exchange (DCE) processes in the eikonal approximation. We focus on the low-momentum-transfer limit -- corresponding to the differential cross section at $\theta=0^\circ$ -- and,…

Nuclear Theory · Physics 2018-12-12 E. Santopinto , H. García-Tecocoatzi , R. I. Magaña-Vsevolodovna , J. Ferretti

The hole doped Si(111)(2root3x2root3)R30(degrees)-Sn interface exhibits a symmetry-breaking insulator-insulator transition below 100 K that appears to be triggered by electron tunneling into the empty surface-state bands. No such transition…

We have observed conventional signature of exchange bias (EB), in form of shift in field-cooled (FC) hysteresis loop, and training effect, in BiFe0.8Mn0.2O3 nanoparticles. From neutron diffraction, thermoremanent magnetization and…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 P. K. Manna , S. M. Yusuf , R. Shukla , A. K. Tyagi

Understanding the dynamic nature of the semiconductor-water interface is crucial for developing efficient photoelectrochemical water splitting catalysts, as it governs reactivity through charge and mass transport. In this study, we employ…

Chemical Physics · Physics 2024-05-03 Sagarmoy Mandal , Tushar Kanti Ghosh

We used high-resolution quasielastic neutron scattering spectroscopy to study the single-particle dynamics of water molecules on the surface of hydrated DNA samples. Both H2O and D2O hydrated samples were measured. The contribution of…

‹ Prev 1 4 5 6 7 8 10 Next ›