Nuclear Coherent Population Transfer with X-Ray Laser Pulses

Liao, Wei-Tung

doi:10.1007/978-3-319-02120-1_3

Cited by 10 publications

(14 citation statements)

References 56 publications

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“…The recent experimental achievements in this frequency range include demonstration of the parametric down-conversion in the Langevin regime [1], cavity electromagnetically induced transparency [2], collective Lamb shift [3], and single-photon revival in the nuclear absorbing sandwiches [4]. Realization of a single photon coherent storage [5] and stimulated Raman adiabatic passage [6] were recently proposed. Still the number of tools for coherent manipulation of gamma-photon -nuclear ensemble interactions remains rather limited.…”

mentioning

confidence: 99%

Coherent control of the waveforms of recoilless γ-ray photons

Vagizov

Antonov

Radeonychev

et al. 2014

Nature

132

225

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The concepts and ideas of coherent, nonlinear and quantum optics deeply penetrate into the range of 10-100 kiloelectronvolt (keV) photon energies, corresponding to soft gamma-ray (hard xray )) radiation. The recent experimental achievements in this frequency range include demonstration of the parametric down-conversion in the Langevin regime [1], cavity electromagnetically induced transparency [2], collective Lamb shift [3], and single-photon revival in the nuclear absorbing sandwiches [4]. Realization of a single photon coherent storage [5] and stimulated Raman adiabatic passage [6] were recently proposed. Still the number of tools for coherent manipulation of gamma-photon -nuclear ensemble interactions remains rather limited. In this work an efficient method to coherently control the waveforms of gamma-photons has been suggested and verified. In particular, the temporal compression of an individual gamma-photon into coherent ultrashort pulse train has been demonstrated. The method is based on the resonant interaction of gamma-photons with an ensemble of nuclei with modulated frequency of the resonant transition. The frequency modulation, achieved by uniform vibration of the resonant absorber due to the Doppler Effect, results in the time-dependence of the resonant absorption and dispersion, which allow shaping of the incident gamma-photons. The developed technique is expected to give a strong ) It is a historic tradition to call a radiation in this range x-ray radiation when it is produced by electron motion and to call it gamma-ray radiation if it is produced by nuclear transitions. 2impetus on emerging fields of coherent and quantum gamma-optics, providing a basis for realization of the gamma-photon -nuclear ensemble interfaces and quantum interference effects at the nuclear gamma-ray transitions.Quantum optics is the field of research dealing with interactions of quanta of electromagnetic radiation with quantum transitions of matter. It provides the basis for new fast growing fields of quantum cryptography, communication, and information. So far the experiments in these fields have been implemented either with microwave or optical photons, interacting with atomic electron transitions, and typically required cryogenic temperatures. The gamma-photons in the range of 10-100keV and the corresponding nuclear quantum transitions are the most suitable for realization of such experiments due to nearly 100% detector efficiency, extremely high Q-factor (~10 12 for 14.4keV transition in 57 Fe) of recoilless nuclear transitions even at room temperature, existence of radioactive materials (representing themselves the natural sources of single gamma-photons) and the cascade scheme of radiative decay of some radioactive sources (Fig.1a), allowing one to study the photon temporal shape via time-delayed coincidence measurement technique [7]. Moreover, the gamma-photons have important potential advantages over the microwave and optical photons for applications in cryptography, communication and information due to extremely...

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mentioning

confidence: 99%

Coherent control of the waveforms of recoilless γ-ray photons

Vagizov

Antonov

Radeonychev

et al. 2014

Nature

132

225

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“…To compensate the energy difference between nuclear transition and X-ray laser, one envisages accelerated nuclei interacting with x-ray laser pulses. In the strong acceleration regime, the resonance condition cannot be satisfied very well for requiring high degree of accuracy of relativistic factor [11,40]. As a result it significantly influences population transfer.…”

Section: Discussionmentioning

confidence: 99%

Population transfer driven by far-off-resonant fields

Shi

Wang

2016

Opt. Express

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For a two-level system, it is believed that a far-off-resonant driving can not help coherent population transfer between two states. In this work, we propose a scheme to implement the coherent transfer with far-off-resonant driving. The scheme works well with both constant driving and Gaussian driving. The total time to finish population transfer is also minimized by optimizing the detuning and coupling constants. We find that the scheme is sensitive to spontaneous emission much more than dephasing. It might find potential applications in X-ray quantum optics and population transfer in Rydberg atoms as well.

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“…The advance of modern XFEL provides completely new opportunities to control nuclear states with very bright coherent hard x-ray beams from XFEL facilities. Anticipating this coming revolution, in this chapter the well-known stimulated Raman adiabatic passage and the two π-pulses method are applied for the first time to control a nuclear quantum state with two Lorentz-boosted XFEL pulses [34]. We find that efficient NCPT is already achievable with laser intensities of 10 18 − 10 19 W/cm 2 which will be available at facilities in commissioning at present.…”

Section: Introductionmentioning

confidence: 98%

“…Moving towards the interactions in the x-ray regime [38,39,[124][125][126][127][128], also new physical systems come into play, e.g., nuclei with low-lying collective states naturally arise as candidates for x-ray quantum optics studies. Nuclear quantum optics [32,48,51,129] and nuclear coherent population transfer [34] are rendered experimentally possible by the advent and commissioning of the x-ray free electron laser (XFEL) [23,24,130]. Coherent control tools based on nuclear cooperative effects [13,49,50,71,131] are known also from nuclear forward scattering experiments with third-generation light sources.…”

Section: Introductionmentioning

confidence: 99%

Coherent Control of Nuclei and X-Rays

Liao

2014

Springer Theses

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The possibility of mutual control of nuclei and photons offered by the emerging field of nuclear quantum optics is theoretically investigated in three different applications. This extension of quantum optics towards nuclei is motivated by modern X-ray Free Electron Lasers (XFEL) which open the possibility to coherently control nuclear states. As a first application we investigate the coherent population transfer between nuclear states in a three-level system driven by an XFEL. Such a level scheme is relevant for the triggering of isomers and might play a role for future energy storage solutions. The other way around, nuclei offer a platform to control single x-ray photons, which can be focused on spots essentially smaller than a single atom and used in future photonic circuits. The second part of this thesis puts forward a nuclear forward scattering setup that allows coherent control of a single x-ray photon using 57 Fe nuclei. Finally, we show that nuclear quantum optics provides a significant improvement for detection in nuclear physics. The low-lying isomeric transition of 229 Th can be addressed by VUV lasers and provides a potential next generation frequency standard. A main impediment is the large uncertainty of the nuclear transition frequency. Using an electromagnetically modified nuclear forward scattering setup, we show that coherence effects can reduce this uncertainty down to an unprecedented level.Within the framework of this thesis, the following articles were published in refereed journals:

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Nuclear Coherent Population Transfer with X-Ray Laser Pulses

Cited by 10 publications

References 56 publications

Coherent control of the waveforms of recoilless γ-ray photons

Coherent control of the waveforms of recoilless γ-ray photons

Population transfer driven by far-off-resonant fields

Coherent Control of Nuclei and X-Rays

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