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The Large Area Telescope on board the Fermi Gamma-ray Space Telescope has collected the largest ever sample of high-energy cosmic-ray electron and positron events since the beginning of its operation. Potential anisotropies in the arrival…

高能天体物理现象 · 物理学 2017-03-06 LAT Collaboration

We present the first observation of an instability in an expanding ultracold plasma. We observe periodic emission of electrons from an ultracold plasma in weak, crossed magnetic and electric fields, and a strongly perturbed electron density…

等离子体物理 · 物理学 2008-11-06 X. L. Zhang , R. S. Fletcher , S. L. Rolston

Some physical effects of time averaged quantum electric field fluctuations are discussed. The one loop radiative correction to potential scattering are approximately derived from simple arguments which invoke vacuum electric field…

高能物理 - 理论 · 物理学 2015-06-10 Haiyun Huang , L. H. Ford

Contrary to existing theoretical models, experimental evidence points out that electroporation (membrane defect formation under external electric fields) starts to occur within the range of transmembrane voltages that cells may routinely…

生物物理 · 物理学 2007-05-23 Zlatko Vasilkoski

The precision of intensity measurements of the extragalactic X-ray Background (XRB) on an angular scale of about a degree is dominated by spatial fluctuations caused by source confusion noise. X-ray source counts at the flux level…

天体物理学 · 物理学 2009-10-30 X. Barcons , A. C. Fabian , F. J. Carrera

Electron sheaths form near the surface of objects biased more positive than the plasma potential, such as in the electron saturation region of a Langmuir probe trace. Generally, the formation of electron sheaths requires that the…

等离子体物理 · 物理学 2016-10-05 Benjamin T. Yee , Brett Scheiner , Scott D. Baalrud , Edward V. Barnat , Matthew M. Hopkins

The aim of this paper is the modeling and simulation of impact of space radiation variability on total dose and single event effects in spaceborne electronics. It has been shown that the simultaneous thermal annealing may lead to…

空间物理 · 物理学 2014-05-23 G. I. Zebrev , I. V. Elushov

Series of experiments were carried out to check the prediction concerning the possibility to generate gravitational field when charged massive particles decelerated in the in substance. As a source of the charged particles was used the…

综合物理 · 物理学 2007-05-23 D. Yu. Tsipenyuk

Type III radio bursts are a signature of the flux of near-relativistic electrons ejected during solar flares. These bursts are frequently observed by spacecraft such as the Parker Solar Probe. It is traditionally believed that these…

Supplementing our STM and electron emission studies investigations, concluding in electron pairing in strong laser fields [1], further time-of-flight electron emission studies were carried out, changing the angle of polarization of the…

光学 · 物理学 2015-06-02 N. Kroó , P. Rácz , S. Varró

The results of a theoretical investigation of the energy loss of charged particles in a magnetized classical plasma due to the electric field fluctuations are reported. The energy loss for a test particle is calculated through the…

等离子体物理 · 物理学 2015-05-27 Hrachya B. Nersisyan , Claude Deutsch

This study investigates the localized electron heating in a bulk overdense plasma. The method relies on using a time dependent magnetic field. An initially high external magnetic field imposed on the overdense plasma target enables the…

等离子体物理 · 物理学 2025-07-04 Rohit Juneja , Trishul Dhalia , Amita Das

Luminosity distance estimates from electromagnetic and gravitational wave sources are generally different in models of dynamical dark energy and gravity beyond the standard cosmological scenario. We show that this leaves a unique imprint on…

Using available quantum Monte Carlo predictions for a strictly 2D electron gas, we have estimated the spin susceptibility of electrons in actual devices taking into account the effect of the finite transverse thickness and finding a very…

强关联电子 · 物理学 2009-11-10 S. De Palo , M. Botti , S. Moroni , Gaetano Senatore

The attenuation of high-energy gamma-ray spectrum due to the electron-positron pair production against the extragalactic background light (EBL) provides an indirect method to measure the EBL of the universe. We use the measurements of the…

宇宙学与河外天体物理 · 物理学 2015-06-16 Yan Gong , Asantha Cooray

Direct laser acceleration has proven to be an efficient source of high-charge electron bunches and high brilliance X-rays. However, an analytical description of the acceleration in the interaction with varying plasma density targets is…

等离子体物理 · 物理学 2024-12-19 Robert Babjak , Bertrand Martinez , Miroslav Krus , Marija Vranic

Space missions often carry antenna instruments that are sensitive to dust impacts, however, the understanding of signal generation mechanisms remained incomplete. A signal generation model in an analytical form is presented that provides a…

This work presents an analytic angular differential cross section formula for the electromagnetic radiation field assisted electron scattering by %% was on impurities in semiconductors. These impurities are approximated with various model…

介观与纳米尺度物理 · 物理学 2019-02-20 I. F. Barna , M. A. Pocsai , S. Varró

DC electric fields can combine with test mass charging and thermal dielectric voltage noise to create significant force noise acting on the drag-free test masses in the LISA (Laser Interferometer Space Antenna) gravitational wave mission.…

广义相对论与量子宇宙学 · 物理学 2008-11-26 W. J. Weber , L. Carbone , A. Cavalleri , R. Dolesi , C. D. Hoyle , M. Hueller , S. Vitale

The power and the probability of electromagnetic radiation from an electron in a constant background tensor field violating Lorentz invariance are calculated. The case of a background field of the quasielectric type is considered. The…

高能物理 - 唯象学 · 物理学 2025-01-31 Anatoly V. Borisov