Interaction of gravitational waves with normal and superconducting matter
2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 85, no 6, 064036- p.Article in journal (Other academic) Published
We develop a unified formalism for describing the interaction of gravitational waves with matterthat clearly separates the effects of general relativity from those due to interactions in the matter.This allows one to take into account the microscopic character of the matter, and we derive a generalexpression for the dispersion of gravitational waves in matter in terms of correlation functions forthe matter in flat spacetime. The formalism enables one to derive simply previous results for thedispersion of gravitational waves in astrophysical plasmas. We also consider metals and show that,while simple estimates indicate that contributions of electrons to the stress tensor could be large,screening of the Coulomb interaction reduces these effects considerably. We consider both normaland superconducting metals, and show that in both cases, electrons and ions are locked togetherunder the influence of a gravitational wave with a frequency much less than the plasma frequencyand, consequently, charge separation has little effect on gravitational waves.
Place, publisher, year, edition, pages
American Physical Society , 2012. Vol. 85, no 6, 064036- p.
Astronomy & Astrophysics, Physics, Particles & Fields
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:umu:diva-38895DOI: 10.1103/PhysRevD.85.064036OAI: oai:DiVA.org:umu-38895DiVA: diva2:384323