Modulation of Mössbauer radiation by pulsed laser excitation

Vagizov, F. G.; Sadykov, E. K.; Kocharovskaya, Оlga

doi:10.1134/s0021364012240137

Cited by 8 publications

(14 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The density operator fulfills a generalization of the master equation 1, such that also the radiative bath degrees of freedom are now included, and the Hamiltonian and Lindbladian are modified to comprise Eqs. (11)- (14). The decay constant in the spontaneous emission term is the natural line width γ , as in the phenomenological case (5b) (see Appendix A 5 for details on the decay constant).…”

Section: Pheno Modelmentioning

confidence: 99%

“…Therefore, so far all experiments have been restricted to the low-excitation regime [12]. Nevertheless, a rich variety of quantum optical coherence effects has already been observed, both in nuclear forward scattering [13][14][15][16][17][18][19][20] and thin-film cavity setups [21][22][23][24][25][26][27]. More possibilities have been theoretically suggested [28][29][30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ab initio quantum models for thin-film x-ray cavity QED

Lentrodt

Heeg

Keitel

et al. 2020

Phys. Rev. Research

View full text Add to dashboard Cite

We develop two ab initio quantum approaches to thin-film x-ray cavity quantum electrodynamics with spectrally narrow x-ray resonances, such as those provided by Mössbauer nuclei. The first method is based on a few-mode description of the cavity, and promotes and extends existing phenomenological few-mode models to an ab initio theory. The second approach uses analytically known Green's functions to model the system. The two approaches not only enable one to ab initio derive the effective few-level scheme representing the cavity and the nuclei in the low-excitation regime, but also provide a direct avenue for studies at higher excitation, involving nonlinear or quantum phenomena. The ab initio character of our approaches further enables direct optimizations of the cavity structure and thus of the photonic environment of the nuclei, to tailor the effective quantum optical level scheme towards particular applications. To illustrate the power of the ab initio approaches, we extend the established quantum optical modeling to resonant cavity layers of arbitrary thickness, which is essential to achieve quantitative agreement for cavities used in recent experiments. Further, we consider multilayer cavities featuring electromagnetically induced transparency, derive their quantum optical few-level systems ab initio, and identify the origin of discrepancies in the modeling found previously using phenomenological approaches as arising from cavity field gradients across the resonant layers.

show abstract

Section: Pheno Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ab initio quantum models for thin-film x-ray cavity QED

Lentrodt

Heeg

Keitel

et al. 2020

Phys. Rev. Research

View full text Add to dashboard Cite

show abstract

“…The control also generalizes to stronger excitation of the nuclear ensemble, for example, involving X-ray free-electron laser sources 32 , 33 , which is an important step towards the exploration of nuclear dynamics using X-ray-pump/X-ray-probe techniques. Similarly, our approach could promote emerging visible-pump/X-ray-probe schemes 15 , 16 . The focus shift from controlling X-ray light to controlling nuclear matter, together with the coherent control capabilities demonstrated here, form an indispensable gateway to engineering complex quantum states and to exploring time-dependent phenomena with nuclei, as in the longer-wavelength domain 34 – 36 .…”

Section: Mainmentioning

confidence: 91%

Coherent X-ray−optical control of nuclear excitons

Heeg

Kaldun

Strohm

et al. 2021

Nature

View full text Add to dashboard Cite

Coherent control of quantum dynamics is key to a multitude of fundamental studies and applications1. In the visible or longer-wavelength domains, near-resonant light fields have become the primary tool with which to control electron dynamics2. Recently, coherent control in the extreme-ultraviolet range was demonstrated3, with a few-attosecond temporal resolution of the phase control. At hard-X-ray energies (above 5–10 kiloelectronvolts), Mössbauer nuclei feature narrow nuclear resonances due to their recoilless absorption and emission of light, and spectroscopy of these resonances is widely used to study the magnetic, structural and dynamical properties of matter4,5. It has been shown that the power and scope of Mössbauer spectroscopy can be greatly improved using various control techniques6–16. However, coherent control of atomic nuclei using suitably shaped near-resonant X-ray fields remains an open challenge. Here we demonstrate such control, and use the tunable phase between two X-ray pulses to switch the nuclear exciton dynamics between coherent enhanced excitation and coherent enhanced emission. We present a method of shaping single pulses delivered by state-of-the-art X-ray facilities into tunable double pulses, and demonstrate a temporal stability of the phase control on the few-zeptosecond timescale. Our results unlock coherent optical control for nuclei, and pave the way for nuclear Ramsey spectroscopy17 and spin-echo-like techniques, which should not only advance nuclear quantum optics18, but also help to realize X-ray clocks and frequency standards19. In the long term, we envision time-resolved studies of nuclear out-of-equilibrium dynamics, which is a long-standing challenge in Mössbauer science20.

show abstract

“…(9). In the Fourier series (14) we are interested in terms that are in resonance with the left hand side of Eq. (9).…”

Section: The Model and Derivation Of Basic Equationsmentioning

confidence: 99%

Superradiant control ofγ-ray propagation by vibrating nuclear arrays

Zhang

Svidzinsky

2013

Phys. Rev. A

View full text Add to dashboard Cite

The collective nature of light interactions with atomic and nuclear ensembles yields the fascinating phenomena of superradiance and radiation trapping. We study the interaction of γ rays with a coherently vibrating periodic array of two-level nuclei. Such nuclear motion can be generated, e.g., in ionic crystals illuminated by a strong driving optical laser field. We find that deflection of the incident γ beam into the Bragg angle can be switched on and off by nuclear vibrations on a superradiant time scale determined by the collective nuclear frequency Ωa, which is of the order of terahertz. Namely, if the incident γ wave is detuned from the nuclear transition by frequency ∆ ≫ Ωa it passes through the static nuclear array. However, if the nuclei vibrate with frequency ∆ then parametric resonance can yield energy transfer into the Bragg deflected beam on the superradiant time scale, which can be used for fast control of γ rays.

show abstract

Modulation of Mössbauer radiation by pulsed laser excitation

Cited by 8 publications

References 16 publications

Ab initio quantum models for thin-film x-ray cavity QED

Ab initio quantum models for thin-film x-ray cavity QED

Coherent X-ray−optical control of nuclear excitons

Superradiant control ofγ-ray propagation by vibrating nuclear arrays

Contact Info

Product

Resources

About