Results 41 to 50 of about 2,686,430 (333)
Tunneling decay of false vortices
, 2013 We consider the decay of vortices trapped in the false vacuum of a theory of scalar electrodynamics in 2+1 dimensions. The potential is inspired by models with intermediate symmetry breaking to a metastable vacuum that completely breaks a U(1) symmetry ...
Lee, Bum-Hoon +5 more
core +1 more source
Atmospheres and Spectra of Strongly Magnetized Neutron Stars II: Effect of Vacuum Polarization [PDF]
, 2002 We study the effect of vacuum polarization on the atmosphere structure and radiation spectra of neutron stars with surface magnetic fields B=10^14-10^15 G, as appropriate for magnetars.
Ho, Wynn C. G., Lai, Dong
core +5 more sources
Vacuum-Ultraviolet Photon Detections
iScience, 2020 Vacuum-ultraviolet (VUV) photon detection technology is an effective means for the exploration in the field of space science (monitoring the formation and evolution of solar storms), high-energy physics (dark matter detection), large-scale scientific ...
Wei Zheng, Lemin Jia, Feng Huang
semanticscholar +1 more source
Astrophysics and Space Science, 2006 8 ...
Burdyuzha, Vladimir, Vereshkov, Grigoriy
openaire +2 more sources
Optimized design of the ion optics based on the over-perveance characteristics of the beam current
AIP Advances, 2023 To illustrate the erosion mechanism of the edge aperture by high-energy ions, a three-dimension simulation model was established, and a particle-in-cell method was applied in tracking the hitting processes as well as a Monte Carlo collision method was ...
Juanjuan Chen +5 more
doaj +1 more source
A torsional thrust stand for electric propulsion thruster [PDF]
AIP AdvancesA torsional thrust stand with heavy load and stability has been developed for electric propulsion thruster testing under vacuum conditions. The thrust measurement principle is based on torsional pendulum mechanics combined with capacitive displacement ...
H. Zhang +5 more
doaj +1 more source
Applied Sciences, 2023 The use of copper anode slime (CAS) for the removal of lead, bismuth, and arsenic is the key to recovering precious metals. In this paper, vacuum differential gravimetry experiments combined with thermodynamic equilibrium calculations reveal the effects ...
Juhai Deng +4 more
doaj +1 more source
Level truncation analysis of exact solutions in open string field theory
, 2007 We evaluate vacuum energy density of Schnabl's solution using the level truncation calculation and the total action including interaction terms. The level truncated solution provides vacuum energy density expected both for tachyon vacuum and trivial pure
A. Sen +15 more
core +1 more source
Resummation of Vacuum Bubble Diagrams in Gaussian Propagator Model [PDF]
, 1997 An imaginary part of the false-vacuum energy density in a metastable system, i.e., the decay width due to quantum tunneling, might be reproduced by Borel resummation of vacuum bubble diagrams.
Yasuta, Hirofumi
core +2 more sources
Metals, 2018 The compound CaCl2 plays a significant role in the process of direct calciothermic reduction of Ti2O3 to prepare porous titanium. In this paper, the effect of CaCl2 on reduction products by calciothermic reduction of Ti2O3 was investigated.
Guobo Yang +5 more
doaj +1 more source