Rabi oscillations of X-ray radiation between two nuclear ensembles

Spectral Control of an X-Ray L -Edge Transition via a Thin-Film Cavity

“…While the latter is formally devised to describe the interaction of x rays with nuclear excited states, it serves just as well to describe that with the electronic shell excited states. It has been used extensively [18,19], and therefore only the principal results are recalled here. The reflectivity is given by…”

“…Extending CQED into the x-ray range is therefore highly desirable. Recent years have seen some success in this area, leading to phenomena such as the collective Lamb shift [14], electromagnetically induced transparency [15], spontaneously generated coherences [16], strong coupling [17,18], Fano resonances [19], and slow light [20] being observed. However, all these experiments made use of 57 Fe, an iron isotope with a nuclear resonance at 14.4 keV.…”

α decay in intense laser fields: Calculations using realistic nuclear potentials

“…Direct light-nucleus interaction with much weaker light intensities has been realized using synchrotron radiations on the Mössbauer 57 Fe system. Using a grazing-incidence X-ray diffraction technique and a planar 57 Fe cavity, collective quantum optical effects have been demonstrated with photon energy 14.4 keV, such as single-photon superradiance [15], electromagenetically induced transparency [16], spontaneously generated coherence [17], Rabi oscillation [18], etc. On the other hand, the nuclei, as the media of X-ray pulse propagation, can be used to modify the properties of the X-ray pulse, such as the pulse shape [19] and the group velocity [20].…”

Ultimate capabilities for compression of the waveform of a recoilless γ-ray photon into a pulse sequence in an optically deep vibrating resonant absorber

“…Earlier experimental achievements in this field include demonstrations of the Autler-Townes effect [1], γ-ray echo via abrupt shift of a nuclear absorber [2], controllable storage and release of nuclear excitation by switch of the magnetic field direction [3], electromagnetically induced transparency (EIT) via a nuclear level anti-crossing [4], slowing down of γ-photon in a nuclear absorber with a split line [5] and other effects discussed in the review [6]. Recent experimental advances include demonstration of parametric down-conversion in the Langevin regime [7], cav-ity electromagnetically induced transparency [8], collective Lamb shift [9], vacuum-assisted generation of atomic coherences [10], single-photon revival in nuclear absorbing sandwiches [11], phase-sensitive measurements characterizing the quantum state of a nuclei at hard x-ray energies [12], and group velocity control for 14.4 keV-energy photons [13], spectral enhancement of x-ray radiation via a moving absorber [14] and demonstration of a strong coupling between two nuclear polariton modes [15]. Also, a number of important effects were theoretically predicted recently including dynamical control of x-ray polarization qubits by nuclear Mössbauer resonance [16], heralded entanglement between two crystal-hosted macroscopic nuclear ensembles [17], as well as mapping and storing x-ray pulses in a thin-film planar x-ray cavity with embedded resonant nuclear medium [18].…”