Volume 87, Number 2, July 2009
Article Number 21002
Number of page(s) 6
Section The Physics of Elementary Particles and Fields
Published online 28 July 2009
EPL, 87 (2009) 21002
DOI: 10.1209/0295-5075/87/21002

Interferometry of light propagation in pulsed fields

B. Döbrich and H. Gies

Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena Max-Wien-Platz 1, D-07743 Jena, Germany, EU

received 16 April 2009; accepted in final form 30 June 2009; published July 2009
published online 28 July 2009

We investigate the use of ground-based gravitational-wave interferometers for studies of the strong-field domain of QED. Interferometric measurements of phase velocity shifts induced by quantum fluctuations in magnetic fields can become a sensitive probe for nonlinear self-interactions among macroscopic electromagnetic fields. We identify pulsed magnets as a suitable strong-field source, since their pulse frequency can be matched perfectly with the domain of highest sensitivity of gravitational-wave interferometers. If these interferometers reach their future sensitivity goals, not only strong-field QED phenomena can be discovered but also further parameter space of hypothetical hidden-sector particles will be accessible.

12.20.Fv - Quantum electrodynamics: Experimental tests.
14.80.-j - Other particles (including hypothetical).

© EPLA 2009