Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 19: Interaction with VUV and X-ray light II

A 19.3: Vortrag

Dienstag, 19. März 2013, 14:30–14:45, F 428

Coherent storage and phase modulation of single hard-x-ray photons — •wen-te liao, adriana pálffy, and christoph h. keitel — Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg

Forwarding optics and quantum information to shorter wavelengths in the x-ray region has the potential of shrinking computing elements in future photonic devices such as the quantum photonic circuit. Here we present two important control tools for single hard-x-ray photons using resonant scattering of light off nuclei in a nuclear forward scattering setup: coherent storage and phase modulation of x-ray single-photon wave packets. The formation of a nuclear exciton consisting of a single delocalized excitation opens the possibility to control the coherent decay and therefore emission of the scattered photon. We theoretically show that by switching off and on again the magnetic field in the nuclear sample, phase-sensitive storage of photons in the keV regime can be achieved. Furthermore, a PI phase modulation of the stored photon can be accomplished if the retrieving magnetic field is rotated by 180 degrees [1,2].

[1] W.-T. Liao, A. Pálffy, and C. H. Keitel, Phys. Rev. Lett. 109, 197403 (2012).

[2] Focus: Storing an X-ray Photon, D. Lindley, Physics 5, 125 (2012).