6 papers
Coherent instabilities of intense high-energy "white" charged-particle beams in the presence of nonlocal effects within the context of the Madelung fluid description
R. Fedele, D. Anderson, M. Lisak
A hydrodynamical description of coherent instabilities that take place in the longitudinal dynamics of a charged-particle coasting beam in a high-energy accelerating machine is pre…
Nonlocal effects in high energy charged particle beams
Pontus Johannisson, Dan Anderson, Mietek Lisak +3
Within the framework of the thermal wave model, an investigation is made of the longitudinal dynamics of high energy charged particle beams. The model includes the self-consistent…
New features of modulational instability of partially coherent light; importance of the incoherence spectrum
D. Anderson, L. Helczynski, M. Lisak +1
It is shown that the properties of the modulational instability of partially coherent waves propagating in a nonlinear Kerr medium depend crucially on the profile of the incoherent…
Modulational instabilities in neutrino--anti-neutrino interactions
Mattias Marklund, Padma K. Shukla, Gerold Betschart +3
We analyze the collective behavior of neutrinos and antineutrinos in a dense background. Using the Wigner transform technique, it is shown that the interaction can be modelled by a…
Nonlinear Bessel beams
Pontus Johannisson, Dan Anderson, Mietek Lisak +1
The effect of the Kerr nonlinearity on linear non-diffractive Bessel beams is investigated analytically and numerically using the nonlinear Schrödinger equation. The nonlinearity i…
Statistical Effects in the Multistream Model for Quantum Plasmas
Dan Anderson, Björn Hall, Mietek Lisak +1
A statistical multistream description of quantum plasmas is formulated, using the Wigner-Poisson system as dynamical equations. A linear stability analysis of this system is carrie…