2004/06/25 by Hugo Pérez Rojas, H. Perez Rojas, Rojas, H. Perez +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Ionosphere and magnetosphere dynamics #Quantum, superfluid, helium dynamics #Solar and Space Plasma Dynamics #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0406284
Presented in the International Workshop on Strong Magnetic Fields and Neutron Stars, Havana, Cuba, April 2003
openalex publication_date 2004/06/25 · arxiv created 2004/07/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study vacuum in a strong magnetic field. It shows a nonlinear response, as a ferromagnetic medium. Anisotropic pressures arise, and a negative pressure is exerted in the direction perpendicular to the field. The analogy of this effect with the Casimir effect is analyzed. The vacuum transverse pressure is found to be of the same order of the statistical pressure for B∼1015G and N∼1033electrons/cm3. Vacuum interaction with the field is studied also for B∼1016G and larger, including the electron anomalous magnetic moment. We estimate quark contribution to vacuum behavior.