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- California Institute of TechnologyUS70 papers
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20 papers · 1 filter
Noise-created bistability and stochastic resonance of impurities diffusing in a semiconductor layer
Mesfin Asfaw, Berhanu Aragie, Mulugeta Bekele
We investigate the dynamics of impurities walking along a semiconductor layer assisted by thermal noise of strength and external harmonic potential . Applying a nonhomoge…
Sigmoid-to-Flux-Rope Transition Leading to A Loop-Like Coronal Mass Ejection
Rui Liu, Chang Liu, Shuo Wang +2
Sigmoids are one of the most important precursor structures for solar eruptions. In this Letter, we study a sigmoid eruption on 2010 August 1 with EUV data obtained by the Atmosphe…
Quantum paramagnets on the honeycomb lattice and field-induced Néel order: Possible application to BiMnO(NO)
R. Ganesh, D. N. Sheng, Young-June Kim +1
Motivated by recent experiments on the spin-3/2 frustrated bilayer honeycomb antiferromagnet BiMnO(NO), we study the spin-S Heisenberg model on the honeycomb lat…
Fermi coordinates, simultaneity, and expanding space in Robertson-Walker cosmologies
David Klein, Evan Randles
Explicit Fermi coordinates are given for geodesic observers comoving with the Hubble flow in expanding Robertson-Walker spacetimes, along with exact expressions for the metric tens…
An iterative wave-front sensing algorithm for high-contrast imaging systems
Jiangpei Dou, Deqing Ren, Yongtian Zhu
Wave-front sensing from focal plane multiple images is a promising technique for high-contrast imaging systems. However, the wave-front error of an optics system can be properly re…
The Area Distribution of Solar Magnetic Bright Points
P. J. Crockett, M. Mathioudakis, D. B. Jess +3
Magnetic Bright Points (MBPs) are among the smallest observable objects on the solar photosphere. A combination of G-band observations and numerical simulations is used to determin…