Investigation of the assumptions of the multiple‐scattering method for electron–molecule scattering cross sections

1980 ◽  
Vol 72 (5) ◽  
pp. 3206-3210 ◽  
Author(s):  
John R. Rumble ◽  
Donald G. Truhlar
Keyword(s):  
Multiple Scattering ◽  
Cross Sections ◽  
Scattering Method ◽  
Scattering Cross ◽  
Molecule Scattering ◽  
Multiple Scattering Method ◽  
Scattering Cross Sections

Particle scattering by rotating trapped quantum gases at finite temperature

2021 ◽  
Author(s):  
Samir Das ◽  
Shyamal Biswas
Keyword(s):  
Cross Sections ◽  
Fermi Gas ◽  
Bose Gas ◽  
Einstein Condensate ◽  
Harmonic Trap ◽  
Quantum Gases ◽  
Scattering Method ◽  
Particle Scattering ◽  
Scattering Cross ◽  
Scattering Cross Sections

Abstract We have analytically explored the quantum phenomena of particle scattering by rotating trapped quantum gases of electrically neutral bosons and fermions for the short-ranged Fermi-Huang interactions between the incident particle and the scatterers. We have predicted differential scattering cross-sections and their temperature and angular velocity dependencies in this regard, in particular, for an ideal Bose gas in a rotating harmonic trap, an ideal Fermi gas in a rotating harmonic trap, and a weakly interacting Bose gas in a slow rotating harmonic trap. We have theoretically probed the lattice-pattern of the vortices in a rapidly rotating strongly interacting Bose-Einstein condensate by the particle scattering method. We also have obtained de Haas-van Alphen-like oscillations in the differential scattering cross-section for an ideal ultracold Fermi gas in a rotating harmonic trap. Our predictions on the differential scattering cross-sections can be tested within the present-day experimental setups.

The Magnetic Structure of Cu0.2Ni0.8 Alloys

1995 ◽  
Vol 408 ◽  
Author(s):  
Yang Wang ◽  
G. M. Stocks ◽  
D. M. C. Nicholson ◽  
W. A. Shelton ◽  
Z. Szotek ◽  
...  
Keyword(s):  
Cross Sections ◽  
Local Density ◽  
Local Environment ◽  
Large Cell ◽  
Scattering Method ◽  
Spin Polarized ◽  
Massively Parallel Processing ◽  
Intel Paragon ◽  
Multiple Scattering Method ◽  
Scattering Cross Sections

AbstractThe locally self-consistent multiple scattering method is applied to ab initio spin-polarized local density approximation calculations for ferromagnetic CuNi alloys. The samples used to model the alloys are constructed with experimentally measured short range order parameters. These large cell calculations are performed using the Intel Paragon XP/S massively parallel processing supercomputer. The neutron magnetic diffuse scattering cross sections are calculated and compared with experiment. The dependence of magnetic moment formation on the local environment is discussed.

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