2003/04/30 by Michael C. Birse, Chung-Wen Kao, Gouranga C. Nayak · 2 citations
Physics and Astronomy · #Anisotropy #Boson #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #High-Energy Particle Collisions Research #Momentum (technical analysis) #Physics #Plasma #Polarization (electrochemistry) #Propagator #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #cond-mat #hep-lat #hep-ph #hep-th #nucl-th
paper · pdf · doi:10.1016/j.physletb.2003.08.007
published as Phys.Lett. B570 (2003) 171-179 · 14 pages latex
arxiv created 2003/08/07 · openalex publication_date 2003/09/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We use a transport-theory approach to construct the static propagator of a gauge boson in a plasma with a general axially- and reflection-symmetric momentum distribution. Non-zero magnetic screening is found if the distribution is anisotropic, confirming the results of a closed-time-path-integral approach. We find that the electric and magnetic screening effects depend on both the orientation of the momentum carried by the boson and the orientation of its polarization. In some orientations there can be antiscreening, reflecting the instabilities of such a medium. We present some fairly general conditions on the dependence of these effects on the anisotropy.