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Q: Fachverband Quantenoptik und Photonik

Q 55: Quantum Effects

Q 55.7: Vortrag

Donnerstag, 8. März 2018, 12:15–12:30, K 1.013

Generation of an X-ray echo from a nuclear resonance under magnetic field rotations — •Jonas Gunst¹, Chia-Jung Yeh², Wen-Te Liao², and Adriana Pálffy¹ — ¹Max-Planck-Institut für Kernphysik, Heidelberg, Germany — ²Department of Physics, National Central University, Taoyuan City, Taiwan

While Moore’s law predicts the fast evolution of miniaturization, for future photonic devices the optical diffraction limit will emerge as bottleneck. Going to shorter wavelengths, e.g. x-ray photons, would drastically reduce this limitation and opens new possibilities for information science. However, versatile control of the basic properties of such photons is the key requirement for short wavelength photonic information carriers.

Nuclear forward scattering, as it occurs with ⁵⁷Fe Mössbauer nuclei, presents a great basis for exerting coherent control on x-ray photons. The nuclear response can be controlled by subjecting the sample to a hyperfine magnetic field and to fast rotations of the latter. Within such a setup the realizability of logical operations on polarization-encoded x-rays has already been demonstrated [1]. Inspired by the control of broadband quantum excitations using gradient photon echoes [2], we show here that such an echo can be generated in the x-ray regime by employing a setup consisting of multiple ⁵⁷Fe targets controlled via external magnetic field rotations.

[1] J. Gunst, C. H. Keitel and A. Pálffy, Sci. Rep. 6, 25136 (2016).

[2] W. Liao, C. H. Keitel, and A. Pálffy, Phys. Rev. Lett. 113, 123602 (2014).