Measuring the magnetic birefringence of vacuum: the PVLAS experiment

  title={Measuring the magnetic birefringence of vacuum: the PVLAS experiment},
  author={Guido Zavattini and Ugo Gastaldi and R Pengo and Giuseppe Ruoso and Federico Della Valle and Edoardo Milotti},
  journal={International Journal of Modern Physics A},
We describe the principle and the status of the PVLAS experiment which is presently running at the INFN section of Ferrara, Italy, to detect the magnetic birefringence of vacuum. This is related to the QED vacuum structure and can be detected by measuring the ellipticity acquired by a linearly polarized light beam propagating through a strong magnetic field. Such an effect is predicted by the Euler–Heisenberg Lagrangian. The method is also sensitive to other hypothetical physical effects such… Expand
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