Vacuum birefringence at x-ray free-electron lasers

Vacuum birefringence at x-ray free-electron lasers

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We study the perspectives of measuring the phenomenon of vacuum birefringence predicted by quantum electrodynamics using an x-ray free-electron laser (XFEL) alone.We devise an experimental scheme allowing two consecutive stickers logos dallas cowboys XFEL pulses to collide under a finite angle, and thus act as both pump and probe field for the effect.The signature of vacuum birefringence is encoded in polarization-flipped signal photons to be detected with high-purity x-ray polarimetry.

Our findings for idealized scenarios underline that the discovery potential of solely XFEL-based setups can be comparable to those involving optical high-intensity lasers.For currently achievable scenarios, we identify several key ivoryjinelle.com details of the x-ray optical ingredients that exert a strong influence on the magnitude of the desired signatures.