High-resolution and massive trapping and separation of dielectric nanoparticles in an optical potential well array

2021 ◽  
Author(s):  
Yuzhi Shi ◽  
Din Ping Tsai ◽  
Yi Zhang ◽  
Ai Qun Liu
Keyword(s):  
High Resolution ◽  
Optical Potential ◽  
Potential Well

ON THE OPTICAL POTENTIAL OF AN ATTRACTIVE NONRELATIVISTIC DEGENERATE ELECTRON GAS INTERACTING WITH NUCLEAR MATTER

2012 ◽  
Vol 26 (31) ◽  
pp. 1250210 ◽  
Author(s):  
M. A. GRADO-CAFFARO ◽  
M. GRADO-CAFFARO
Keyword(s):  
Nuclear Matter ◽  
Optical Potential ◽  
Electron Gas ◽  
Three Dimensional ◽  
Harmonic Oscillators ◽  
Fermi Velocity ◽  
Potential Well ◽  
Schwinger Model ◽  
Degenerate Fermi Gas ◽  
Degenerate Electron Gas

The optical potential of an attractive nonrelativistic electron gas interacting with nuclear matter is determined on the basis of the concept of degenerate Fermi gas. In fact, the involved electrons are treated as three-dimensional quantum harmonic oscillators confined at the surface of a spherical (approximately ideal) potential well. Within this picture, the Fermi velocity is calculated as well as the spatial electron density at the surface of the potential well and the attractive force between the electron gas and the nuclear matter. In addition, considerations related to the Lippmann–Schwinger model are made.

Optical Potential forHe(21S)+Arfrom High-Resolution Differential Scattering Experiments

1976 ◽  
Vol 36 (22) ◽  
pp. 1299-1302 ◽  
Author(s):  
B. Brutschy ◽  
H. Haberland ◽  
H. Morgner ◽  
K. Schmidt
Keyword(s):  
High Resolution ◽  
Optical Potential

scholarly journals High-resolution three-dimensional simulations of gas removal from ultrafaint dwarf galaxies

2019 ◽  
Vol 630 ◽  
pp. A140 ◽  
Author(s):  
Donatella Romano ◽  
Francesco Calura ◽  
Annibale D’Ercole ◽  
C. Gareth Few
Keyword(s):  
High Resolution ◽  
Milky Way ◽  
Dwarf Galaxies ◽  
Three Dimensional ◽  
Energy Output ◽  
Potential Well ◽  
Hydrodynamic Simulations ◽  
Stellar Feedback ◽  
Gas Removal ◽  
Cold Gas

Context. The faintest Local Group galaxies found lurking in and around the Milky Way halo provide a unique test bed for theories of structure formation and evolution on small scales. Deep Subaru and Hubble Space Telescope photometry demonstrates that the stellar populations of these galaxies are old and that the star formation activity did not last longer than 2 Gyr in these systems. A few mechanisms that may lead to such a rapid quenching have been investigated by means of hydrodynamic simulations, but these have not provided any final assessment so far. Aims. This is the first in a series of papers aimed at analyzing the roles of stellar feedback, ram pressure stripping, host-satellite tidal interactions, and reionization in cleaning the lowest mass Milky Way companions of their cold gas using high-resolution, three-dimensional hydrodynamic simulations. Methods. We simulated an isolated ultrafaint dwarf galaxy loosely modeled after Boötes I, and examined whether or not stellar feedback alone could drive a substantial fraction of the ambient gas out from the shallow potential well. Results. In contrast to simple analytical estimates, but in agreement with previous hydrodynamical studies, we find that most of the cold gas reservoir is retained. Conversely, a significant amount of the metal-enriched stellar ejecta crosses the boundaries of the computational box with velocities exceeding the local escape velocity and is, thus, likely lost from the system. Conclusions. Although the total energy output from multiple supernova explosions exceeds the binding energy of the gas, no galactic-scale outflow develops in our simulations and as such, most of the ambient medium remains trapped within the weak potential well of the model galaxy. It seems thus unavoidable that to explain the dearth of gas in ultrafaint dwarf galaxies, we will have to resort to environmental effects. This will be the subject of a forthcoming paper.

Optical Potential-Well Array for High-Selectivity, Massive Trapping and Sorting at Nanoscale

Nano Letters ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 5193-5200 ◽  
Author(s):  
Yuzhi Shi ◽  
Haitao Zhao ◽  
Lip Ket Chin ◽  
Yi Zhang ◽  
Peng Huat Yap ◽  
...  
Keyword(s):  
Optical Potential ◽  
High Selectivity ◽  
Potential Well

Fine features of optical potential well induced by nonlinearity

2020 ◽  
Vol 45 (22) ◽  
pp. 6266
Author(s):  
Lei-Ming Zhou ◽  
Yaqiang Qin ◽  
Yuanjie Yang ◽  
Yuqiang Jiang
Keyword(s):  
Optical Potential ◽  
Potential Well
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