Publications (24)
A 0.96pJ/SOP, 30.23K-neuron/mm^2 Heterogeneous Neuromorphic Chip With Fullerene-like Interconnection Topology for Edge-AI Computing
P. J. Zhou, Q. Yu, M. Chen +7
Edge-AI computing requires high energy efficiency, low power consumption, and relatively high flexibility and compact area, challenging the AI-chip design. This work presents a 0.9…
Verwey transition in single magnetite nanoparticles
Q. Yu, A. Mottaghizadeh, H. Wang +5
We present a tunnel spectroscopy study of the electronic spectrum of single magnetite \chemform{Fe_3O_4} nanoparticles trapped between nanometer-spaced electrodes. The Verwey trans…
Controllable high-quality electron beam generation by phase slippage effect in layered targets
Q. Yu, Y. J. Gu, X. F. Li +5
The bubble structure generated by laser and plasma interactions changes in size depending on the local plasma density. The self injection electrons position with respect to wakefie…
Wide operational windows of edge-localized mode suppression by resonant magnetic perturbations in the DIII-D tokamak
Q. M. Hu, R. Nazikian, B. A. Grierson +4
Edge-Localized-Mode (ELM) suppression by resonant magnetic perturbations (RMPs) generally occurs over very narrow ranges of the plasma current (or magnetic safety factor q95) in th…
Robust Collimation Control of Laser-Generated Ion Beam
S. Kawata, M. Takano, D. Kamiyama +7
The robustness of a structured collimation device is discussed for an intense-laser-produced ion beam. In this paper the ion beam collimation is realized by the solid structured co…
Exploring the nature of Galactic unassociated sources detected by the Fermi-LAT
F. Acero, A. Acharyya, A. Adelfio +120
We investigate the nature of the unassociated sources detected by the Fermi-LAT close (|b|<10°) to the Galactic plane, representing 16% of all sources in the 4FGL-DR4 catalog. The…
Terahertz radiation generated by shell electrons in the bubble regime via the interaction between an intense laser and underdense plasma
J. F. Qu, X. F. Li, X. Y. Liu +6
Backward terahertz radiation can be produced by a high-intensity laser normally incident upon an underdense plasma. It is found that terahertz radiation is generated by electrons r…
Control of electron beam polarization in the bubble regime of laser-wakefield acceleration
H. C. Fan, X. Y. Liu, X. F. Li +9
Electron beam polarization in the bubble regime of the interaction between a high-intensity laser and a longitudinally pre-polarized plasma is investigated by means of the Thomas-B…
Dynamic behavior of magnetic avalanches in the spin-ice compound DyTiO
M. J. Jackson, E. Lhotel, S. R. Giblin +6
Avalanches of the magnetization, that is to say an abrupt reversal of the magnetization at a given field, have been previously reported in the spin-ice compound DyTiO$_…
The Role of Edge Resonant Magnetic Perturbations in Edge-Localized-Mode Suppression and Density Pump-out in low-collisionality DIII-D Plasmas
Q. M. Hu, R. Nazikian, B. A. Grierson +3
Two-fluid nonlinear MHD simulations using the TM1 code demonstrate that the formation of magnetic islands at the top and bottom of the H-mode pedestal, together with the strong scr…
Improvement of all-optical Compton -rays source by reshaping colliding pulse
Q. Yu, Y. Zhang, Q. Kong +1
All-optical Compton scattering is a remarkable method of generating high-quality radiation source. It is easier achieved in experiment by employing a pulse based on laser wake…
Radiative deflection by spin effect in the quantum radiation-reaction regime
X. S. Geng, L. L. Ji, B. F. Shen +11
The colliding between ultra-relativistic electrons and an ultra-intense laser pulse is a powerful approach to testify the physics in strong-field QED regime. By considering spin-de…
Sustained electron self-injection in an evolving ellipsoid bubble for laser-plasma interaction
X. F. Li, Q. Kong, S. Kawata +3
Electron injection in an evolving ellipsoid bubble for laser wakefield acceleration is investigated by 2.5D PIC (Particle-In-Cell) simulation. Generally speaking, the self-injectio…
Modeling with structure of resins in electonic compornents
Q. Yu, T. Shibutani, M. Shiratori +2
In recent years, interfacial fracture becomes one of the most important problems in the assessment of reliability of electronics packaging. Especially, underfill resin is used with…
The Density Dependence of Edge-Localized-Mode Suppression and Pump-out by Resonant Magnetic Perturbations in the DIII-D Tokamak
Q. M. Hu, R. Nazikian, B. Grierson +4
The density dependence of edge-localized-mode (ELM) suppression and density pump-out (density reduction) by n = 2 resonant magnetic perturbations (RMPs) is consistent with the effe…
Effect of externally applied resonant magnetic perturbations on resistive tearing modes
Qiming Hu, Q. Yu, Bo Rao +3
Static resonant magnetic perturbations (RMPs) generated by saddle coil current have been applied in J-TEXT tokamak experiments in order to study their effects on tearing mode insta…
The Mass-To-Light Function: Antibias and Omega_m
N. A. Bahcall, R. Cen, R. Davé +2
We use large-scale cosmological simulations to estimate the mass-to-light ratio of galaxy systems as a function of scale, and compare the results with observations of galaxies, gro…
Tight focusing proton beam with radius in nanometer scale generation based on channeled solid target
Q. Yu
An efficient scheme of generating ultra-tightly focused proton bunch with radius in nanometer scale is proposed. A needlelike proton filament of transverse size in nanometer scale…
All-optical Compton photon source generation via modulating pulse profile by convex focusing plasma mirror
Q. Yu
A relatively efficient scheme to generate energetic -ray is all-optical Compton scattering based on wakefield acceleration and plasma mirror where planar or concave solid targe…
NWChem: Past, Present, and Future
E. AprÃ, E. J. Bylaska, W. A. de Jong +111
Specialized computational chemistry packages have permanently reshaped the landscape of chemical and materials science by providing tools to support and guide experimental efforts…
Electron cotunneling transport in gold nanocrystal arrays
H. Moreira, Q. Yu, B. Nadal +5
We describe current-voltage characteristics I(V) of alkyl-ligated gold nanocrystals arrays in long screening length limit. Arrays with different alkyl ligand lengths ha…
Effects of electron-phonon interactions on the electron tunneling spectrum of PbS quantum dots
H. Wang, E. Lhuillier, Q. Yu +6
We present a tunnel spectroscopy study of single PbS Quantum Dots (QDs) as function of temperature and gate voltage. Three distinct signatures of strong electron-phonon coupling ar…
Quantum Reflection above the Classical Radiation-reaction Barrier in the QED Regime
X. S. Geng, L. L. Ji, B. F. Shen +5
The colliding between an ultra-intense laser pulse with a high energy electron beam is not only an important source for high-brightness gamma-rays but also a powerful approach to e…
Nonlinear modeling of the scaling law for the m/n=3/2 error field penetration threshold
Q. Hu, N. C. Logan, J. -K. Park +3
The scaling law for the n=2 error field (EF) penetration threshold is predicted numerically based on nonlinear single-fluid and two-fluid modeling using the TM1 code. The simulated…