Coherent Control of Nuclei and X-Rays

Liao, Wen-Te

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

Cited by 16 publications

(15 citation statements)

References 160 publications

(453 reference statements)

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“…Turning magnetic fields of a few Tesla rapidly off and on may be realized according to Ref. [71] by two methods: (i) high-voltage snapper capacitors can be employed to regulate the pulse currents in magnetic coils; (ii) with the help of the lighthouse effect [47] the nuclear sample can be quickly moved out of the region where the magnetic field is applied. In contrast, the scenario with an external time delay element does not require any switching schemes, opening the possibility to make use of the high intrinsic hyperfine field occurring in magnetized FeBO 3 targets.…”

Section: Summary and Discussionmentioning

confidence: 99%

X-ray quantum-eraser setup for time-energy complementarity

Gunst

Pálffy

2016

Phys. Rev. A

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A quantum-eraser setup exploiting the time-energy complementarity relation in the x-ray regime is investigated theoretically. The starting point is the interference process between x-ray quanta driving two nuclear hyperfine transitions in a nuclear forward-scattering setup. We show that which-way information can be obtained by marking the scattering paths with orthogonal polarization states, thus leading to the disappearance of the interference pattern. In turn, erasure of the which-way information leads to the reappearance of the interference fringes. We put forward two schemes using resonant scattering off nuclear targets and design which-way marking procedures to realize the quantum-eraser setup for x-ray quanta

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Section: Summary and Discussionmentioning

confidence: 99%

X-ray quantum-eraser setup for time-energy complementarity

Gunst

Pálffy

2016

Phys. Rev. A

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“…Also nuclear two-photon excitation with a frequency comb was discussed [294]. Coherent population transfer in 229 Th was further considered in [74,205,206]. It was proposed that the 229 Th isomeric decay could be identified via electromagnetically modified nuclear forward scattering.…”

Section: A12 Direct Photon Excitationmentioning

confidence: 99%

The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Wense

2020

Eur. Phys. J. A

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The proposal for the development of a nuclear optical clock has triggered a multitude of experimental and theoretical studies. In particular the prediction of an unprecedented systematic frequency uncertainty of about $$10^{-19}$$ 10 - 19 has rendered a nuclear clock an interesting tool for many applications, potentially even for a re-definition of the second. The focus of the corresponding research is a nuclear transition of the $$^{229}$$ 229 Th nucleus, which possesses a uniquely low nuclear excitation energy of only $$8.12\pm 0.11$$ 8.12 ± 0.11 eV ($$152.7\pm 2.1$$ 152.7 ± 2.1 nm). This energy is sufficiently low to allow for nuclear laser spectroscopy, an inherent requirement for a nuclear clock. Recently, some significant progress toward the development of a nuclear frequency standard has been made and by today there is no doubt that a nuclear clock will become reality, most likely not even in the too far future. Here we present a comprehensive review of the current status of nuclear clock development with the objective of providing a rather complete list of literature related to the topic, which could serve as a reference for future investigations.

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“…These include the development of a highly stable source of light for metrology [1], the development of a nuclear optical clock [2,3], a nuclear γ-ray laser [4,5] and a nuclear qubit for quantum computing [6]. Further, it will advance the field of experimental nuclear quantum optics [7][8][9]. With an expected accuracy of 1.5 • 10 −19 [3] a nuclear optical clock may even surpass the best optical atomic clocks operational today [10,11], having the potential for utilization in, e.g., satellite-based navigation [12], relativistic geodesy [13], probing for timevariations of fundamental constants [14] and the search for topological dark matter [15].…”

Section: Introductionmentioning

confidence: 99%

The theory of direct laser excitation of nuclear transitions

et al. 2020

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A comprehensive theoretical study of direct laser excitation of a nuclear state based on the density matrix formalism is presented. The nuclear clock isomer 229m Th is discussed in detail, as it could allow for direct laser excitation using existing technology and provides the motivation for this work. The optical Bloch equations are derived for the simplest case of a pure nuclear two-level system and for the more complex cases taking into account the presence of magnetic sub-states, hyperfine-structure and Zeeman splitting in external fields. Nuclear level splitting for free atoms and ions as well as for nuclei in a solid-state environment is discussed individually. Based on the obtained equations, nuclear population transfer in the low-saturation limit is reviewed. Further, nuclear Rabi oscillations, power broadening and nuclear twophoton excitation are considered. Finally, the theory is applied to the special cases of 229m Th and 235m U, being the nuclear excited states of lowest known excitation energies. The paper aims to be a didactic review with many calculations given explicitly.

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Coherent Control of Nuclei and X-Rays

Cited by 16 publications

References 160 publications

X-ray quantum-eraser setup for time-energy complementarity

X-ray quantum-eraser setup for time-energy complementarity

The $$^{229}$$Th isomer: prospects for a nuclear optical clock

The theory of direct laser excitation of nuclear transitions

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