Results 71 to 80 of about 1,869,289 (152)
Afterlive: A performant code for Vlasov-Hybrid simulations
, 2018 A parallelized implementation of the Vlasov-Hybrid method [Nunn, 1993] is presented. This method is a hybrid between a gridded Eulerian description and Lagrangian meta-particles.
Kilian, Patrick +2 more
core +1 more source
Pair condensation and bound states in fermionic systems
, 2005 We study the finite temperature-density phase diagram of an attractive fermionic system that supports two-body (dimer) and three-body (trimer) bound states in free space.
A. J. Leggett +14 more
core +1 more source
Collective motion of self-propelled particles with density-dependent switching effect
AIP Advances, 2016 We study the effect of density-dependent angular response on large scale collective motion, that particles are more likely to switch their moving direction within lower local density region. We show that the presence of density-dependent angular response
Qiu-shi Chen, Yu-qiang Ma
doaj +1 more source
Some topological issues for ferromagnets and fluids
, 2003 We analyze the canonical structure of a continuum model of ferromagnets and clarify known difficulties in defining a momentum density. The moments of the momentum density corresponding to volume-preserving coordinate transformations can be defined, but a
Arnol'd +25 more
core +1 more source
Longitudinal space charge debunching and compensation in high-frequency accelerators
Physical Review Special Topics. Accelerators and Beams, 1999 Space charge debunching is a major issue for future high-gradient, high-frequency accelerator techniques. Space charge will set limits on the maximum six-dimensional phase space density obtainable in optical or plasma based accelerators.
L. C. Steinhauer, W. D. Kimura
doaj +1 more source
Symmetry Decomposition of Potentials with Channels
, 1996 We discuss the symmetry decomposition of the average density of states for the two dimensional potential $V=x^2y^2$ and its three dimensional generalisation $V=x^2y^2+y^2z^2+z^2x^2$.
+25 more
core +3 more sources
Adaptive kernel methods to simulate quantum phase space flow
Condensed Matter Physics, 2006 A technique for simulating quantum dynamics in phase space is discussed. It makes use of ensembles of classical trajectories to approximate the distribution functions and their derivatives by implementing Adaptive Kernel Density Estimation.
H.López, A.Donoso
doaj +1 more source
Odessa Astronomical Publications, 2017 This paper describes the developed model of dark matter cored density profiles. This model was recently proposed by Dmytro Iakubovskyi (Iakubovskyi & Rudakovskyi, in preparation).
A. V. Rudakovskyi
doaj +1 more source
Synchrotron radiation representation in phase space
Physical Review Special Topics. Accelerators and Beams, 2012 The notion of brightness is efficiently conveyed in geometric optics as density of rays in phase space. Wigner has introduced his famous distribution in quantum mechanics as a quasiprobability density of a quantum system in phase space.
Ivan V. Bazarov
doaj +1 more source
Structural and ferroelectric transitions in magnetic nickelate PbNiO3
New Journal of Physics, 2014 Density functional calculations have been tremendously useful in understanding the microscopic origin of multiferroicity and in quantifying relevant properties in many multiferroics and magnetoelectrics.
X F Hao +5 more
doaj +1 more source