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The perovskite oxides are known to be susceptible to structural distortions over a long wavelength when compared to their parent cubic structures. From an ab initio simulation perspective, this requires accurate calculations including many…

计算物理 · 物理学 2022-02-16 Jack S. Baker , Tsuyoshi Miyazki , David R. Bowler

Atomic collapse is a phenomenon inherent to relativistic quantum mechanics where electron states dive in the positron continuum for highly charged nuclei. This phenomenon was recently observed in graphene. Here we investigate a novel…

介观与纳米尺度物理 · 物理学 2019-09-04 Robbe Van Pottelberge , Dean Moldovan , S. P. Milovanovic , Francois M. Peeters

We introduce a Self-affine Asperity Model (SAM) for the seismicity that mimics the fault friction by means of two fractional Brownian profiles (fBm) that slide one over the other. An earthquake occurs when there is an overlap of the two…

凝聚态物理 · 物理学 2009-10-28 R. Hallgass , V. Loreto , O. Mazzella , G. Paladin , L. Pietronero

Plutonium is a critically important material as the behavior of its 5f-electrons stands midway between the metallic-like itinerant character of the light actinides and localized atomic-core-like character of the heavy actinides. The…

强关联电子 · 物理学 2020-07-01 Roxanne Tutchton , Wei-ting Chiu , R. C. Albers , G. Kotliar , Jian-Xin Zhu

This report provides an alternative to the Standard Model of particle physics. The model described here is based on results from Quantum Field Mechanics, according to which all fundamental particles and interactions originate from the…

综合物理 · 物理学 2015-10-20 Ben J Baten

Topological constraints have long been known to provide efficient mechanisms for localizing and storing energy across a range of length scales, from knots in DNA to turbulent plasmas. Despite recent theoretical and experimental progress on…

软凝聚态物质 · 物理学 2020-11-11 Vishal P. Patil , Žiga Kos , Miha Ravnik , Jörn Dunkel

Coronal mass ejections (CMEs) and eruptive flares (EFs) are the most energetic explosions in the solar system. Their underlying origin is the free energy that builds up slowly in the sheared magnetic field of a filament channel. We report…

太阳与恒星天体物理 · 物理学 2019-10-03 Joel T. Dahlin , Spiro K. Antiochos , C. Richard DeVore

Large continental earthquakes activate multiple faults in a complex fault system, dynamically inducing co-seismic damage around them. The 2016 Mw 7.8 Kaikoura earthquake in the northern South Island of New Zealand has been reported as one…

A quake model of bare strange stars for normal pulsar glitches is summarized. Three mechanisms being responsible for developing elastic stress energy are presented. It is suggested that other kinds of glitches (e.g, the frequency glitch in…

天体物理学 · 物理学 2007-05-23 R. X. Xu , A. Z. Zhou

We propose a dynamical theory of how the chemical energy stored in a battery generates the electromotive force (emf). In this picture, the battery's half-cell acts as an engine, cyclically extracting work from its underlying chemical…

We investigate the kinetic-energy spectrum of electrons emitted from an excited many-electron system, often called photo-electron spectrum (PES). We are particularly interested on the impact of resonant modes of the system on PES. To this…

原子与分子团簇 · 物理学 2015-06-23 P. M. Dinh , P. -G. Reinhard , E. Suraud , P. Wopperer

As demonstrated by Chernodub, strong magnetic field forces vacuum to develop real condensates of electrically charged rho mesons, which form an anisotropic inhomogeneous superconducting state similar to Abrikosov vortex lattice. As far as…

光学 · 物理学 2012-12-18 Igor I. Smolyaninov

Energetic electrons are a common feature of interplanetary shocks and planetary bow shocks, and they are invoked as a key component of models of nonthermal radio emission, such as solar radio bursts. A simulation study is carried out of…

天体物理学 · 物理学 2008-11-26 D. Burgess

In high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies using the electric…

核实验 · 物理学 2014-09-09 ALICE Collaboration

Low Mach number, high beta fast mode shocks can occur in the magnetic reconnection outflows of solar flares. These shocks, which occur above flare loop tops, may provide the electron energization responsible for some of the observed hard…

太阳与恒星天体物理 · 物理学 2013-03-01 Jaehong Park , Chuang Ren , Jared C. Workman , Eric G. Blackman

The district of southern California and Japan are divided into small cubic cells, each of which is regarded as a vertex of a graph if earthquakes occur therein. Two successive earthquakes define an edge and a loop, which replace the complex…

无序系统与神经网络 · 物理学 2007-05-23 Sumiyoshi Abe , Norikazu Suzuki

Correlations between pairs of projectile-like fragments, emitted by the system ${^{16}O}+{^{197}Au}$ at the laboratory bombarding energy of 515 MeV, have been studied under two stipulated conditions: (1) at least one member of the pair is…

核实验 · 物理学 2008-11-26 Jayanti Rama Rao , H. Machner , G. Buhr , M. Nolte , M. Palarczyk

When a flat stress-free surface (i.e., the ground in seismological applications) separating air from a isotropic, homogeneous or horizontally-layered, solid substratum is solicited by a SH plane body wave incident in the substratum, the…

经典物理 · 物理学 2007-05-23 Armand Wirgin , Jean-Philippe Groby

Glide and climb of quantum dislocations under finite external stress, variation of chemical potential and bias (geometrical slanting) in Peierls potential are studied by Monte Carlo simulations of the effective string model. We treat on…

其他凝聚态物理 · 物理学 2015-05-19 D. Aleinikava , E. Dedits , A. B. Kuklov

Bayesian neural networks (BNN) are the probabilistic model that combines the strengths of both neural network (NN) and stochastic processes. As a result, BNN can combat overfitting and perform well in applications where data is limited.…

机器学习 · 统计学 2023-04-13 Sabber Ahamed , Md Mesbah Uddin
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