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Magnetically stabilized luminescence is observed in hexagonal boron nitride. The luminescence is induced by absorption of cold neutrons and is in the visible region. In the absence of a magnetic field, the photon emission level is observed…

We investigate the generation of magnetic fields from inflation, which occurs via breakdown of the conformal invariance of the electromagnetic (EM) field, when coupled with the Ricci scalar and the Gauss-Bonnet invariant. For the case of…

广义相对论与量子宇宙学 · 物理学 2021-04-14 Kazuharu Bamba , E. Elizalde , S. D. Odintsov , Tanmoy Paul

We study the primordial magnetic field generated by the simple model $f^2 FF$ in Starobinsky, $R^2$-inflationary, model. The scale invariant PMF is achieved at relatively high power index of the coupling function, $\left| \alpha \right|…

宇宙学与河外天体物理 · 物理学 2015-05-21 Anwar Saleh AlMuhammad

A strong magnetic field enhances the chiral condensate at low temperatures. This so-called magnetic catalysis thus seeks to increase the vacuum mass of nucleons. We employ two relativistic field-theoretical models for nuclear matter, the…

核理论 · 物理学 2015-01-07 Alexander Haber , Florian Preis , Andreas Schmitt

Measuring the scintillation and ionization yields of liquid xenon in response to ultra-low energy nuclear recoil events is necessary to increase the sensitivity of liquid xenon experiments to light dark matter. Neutron capture on xenon can…

仪器与探测器 · 物理学 2023-03-01 C. S. Amarasinghe , R. Coronel , D. Q. Huang , Y. Liu , M. Arthurs , S. Steinfeld , R. Gaitskell , W. Lorenzon

Fast Ignition Inertial Confinement Fusion is a variant of inertial fusion in which DT fuel is first compressed to high density and then ignited by a relativistic electron beam generated by a fast (< 20 ps) ultra-intense laser pulse, which…

The details of ignition of Type Ia supernovae remain fuzzy, despite the importance of this input for any large-scale model of the final explosion. Here, we begin a process of understanding the ignition of these hotspots by examining the…

天体物理学 · 物理学 2009-11-13 L. Jonathan Dursi , F. X. Timmes

The magnetocaloric effect (MCE) in the A-site ordered manganite NdBaMn2O6 is studied. The MCE in this compound has an anomalous behavior. In low magnetic fields, the abrupt transitions between direct and inverse magnetocaloric effect are…

材料科学 · 物理学 2012-02-20 A. M. Aliev , A. G. Gamzatov , V. S. Kalitka , A. R. Kaul

The autoignition delays of mixtures of methyl-cyclohexane (MCH), oxygen, nitrogen, and argon have been studied in a heated rapid compression machine under the conditions $P_C$ = 50 bar, $T_C$ = 690 - 910K. Three different mixture…

We report on compact, gaseous 3He NMR probes for precision magnetometry of magnetic fields B > 0.1 T in the temperature range from ambient temperatures down to 4 Kelvin. The gas is polarized at thermal equilibrium under pressures up to 100…

原子物理 · 物理学 2025-05-26 P. Blümler , M. Fertl , H. -J. Grafe , R. Graf , W. Heil

The acceleration of lithium tube segments with the length one centimeter, diameter sixteen microns wall thickness one nanometer is considered. These segments are electrically charged by proton beams produced by an electron beam source.…

等离子体物理 · 物理学 2013-11-22 S. N. Dolya

In contrast to the broad stream of sustainable developments on fusion energy, new aspects are developed now by applying ultra-short, ultra-powerful laser pulses in a plasma-block ignition scheme by avoiding the well known difficulties of…

等离子体物理 · 物理学 2014-12-16 Heinrich Hora

We simulate several magnetic reconnection processes in the low solar chromosphere/photosphere, the radiation cooling, heat conduction and ambipolar diffusion are all included. Our numerical results indicate that both the high temperature($…

太阳与恒星天体物理 · 物理学 2016-12-14 Lei Ni , Jun Lin , Ilia I. Roussev , Brigitte Schmieder

We consider helical coupling to electromagnetism and present a simple scenario of evolution of the coupling function leading to a viable inflationary magnetogenesis without the problem of back-reaction. In this scenario, helical magnetic…

宇宙学与河外天体物理 · 物理学 2019-10-09 Yuri Shtanov

Small-field inflation typically requires rather special initial conditions to commence. It is proposed that in models where the inflaton is an axionlike field, with a periodic contribution to the potential, there is a possibility of…

宇宙学与河外天体物理 · 物理学 2010-01-05 Michal Spalinski

Gyrokinetic simulations of magnetic reconnection are presented to investigate plasma heating for strongly magnetized, weakly collisional plasmas. For a low plasma beta case, parallel and perpendicular phase mixing strongly enhance energy…

等离子体物理 · 物理学 2015-04-14 Ryusuke Numata , Nuno F. Loureiro

A muon storage ring neutrino source uses an induction linac for muon capture, a 200 MHz copper cavity system for cooling, and 200 and 400 MHz superconducting rf systems for acceleration to a final energy of up to 50 GeV. These systems and…

加速器物理 · 物理学 2009-08-17 David Neuffer

Inertical Confinement Fusion configuration model is analized for direct ignition without an ablator. The compression of the target pellet is neglected and rapid volume ignition is achieved by a laser pulse, which is as short as the…

等离子体物理 · 物理学 2016-11-16 Susanne F. Spinnangr , István Papp , László P. Csernai

Electron heating and mixing during asymmetric reconnection are studied with a 3D kinetic simulation that matches plasma parameters from Magnetospheric Multiscale (MMS) spacecraft observations of a magnetopause diffusion region. The mixing…

等离子体物理 · 物理学 2017-04-04 Ari Le , William Daughton , Li-Jen Chen , Jan Egedal