Nuclear-state population transfer by a train of coincident pulses

Akbari, Hossein; Saadati-Niari, M.; Zolfagharpour, Farhad

doi:10.1103/physrevc.94.054601

Cited by 13 publications

(9 citation statements)

References 36 publications

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“…28 (2018) 056001 taken into consideration. Rangelov and Nedaee-Shakarab have theoretically demonstrated that the complete population transfer was allowed with a train of pairs of coincident pulses [27,28]. Figure 3 plots the process of the population transfer with variable pulse pairs n = (1, 2, 3, 4, 5, 6) respectively.…”

Section: Resultsmentioning

confidence: 99%

“…In the dynamics of the coherent population transfer among electronic states in multilevel systems, apart from utilizing two single laser pulses, ultrashort pulse trains were also utilized to steer the population transfer [23][24][25][26][27][28][29]. Felinto et al presented the population accumulative process by an ultrashort pulse train [23,24].…”

Section: Introductionmentioning

confidence: 99%

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Steering population transfer of the Na₂molecule by an ultrashort pulse train

Niu¹,

Wang²,

Zhan³

et al. 2018

Laser Phys.

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We theoretically investigate the complete population transfer among quantum states of the Na 2 molecule using ultrashort pulse trains using the time-dependent wave packet method. The population accumulation of the target state can be steered by controlling the laser parameters, such as the variable pulse pairs, the different pulse widths, the time delays and the repetition period between two contiguous pulses; in particular, the pulse pairs and the pulse widths have a great effect on the population transfer. The calculations show that the ultrashort pulse train is a feasible solution, which can steer the population transfer from the initial state to the target state efficiently with lower peak intensities.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Steering population transfer of the Na₂molecule by an ultrashort pulse train

Niu¹,

Wang²,

Zhan³

et al. 2018

Laser Phys.

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“…The crossedbeam setup can use the same XFEL frequency for both P and S pulses, however, at the cost of a more complicated beam geometry. The three-beam setup STIRAP studies [182,184] were followed by more detailed works on nuclear STIRAP by a train of coincident pulses [185] and nuclear-state engineering in tripod systems using x-ray laser pulses [186].…”

Section: B33 Application Of Stirap For Polarizing Angularmomentum Statesmentioning

confidence: 99%

Roadmap on STIRAP applications

Бергманн

Nägerl

Panda

et al. 2019

J. Phys. B: At. Mol. Opt. Phys.

152

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STIRAP (Stimulated Raman Adiabatic Passage) is a powerful laser-based method, usually involving two photons, for efficient and selective transfer of population between quantum states. A particularly interesting feature is the fact that the coupling between the initial and the final quantum states is via an intermediate state even though the lifetime of the latter can be much shorter than the interaction time with the laser radiation. Nevertheless, spontaneous emission from the intermediate state is prevented by quantum interference. Maintaining the coherence between the initial and final state throughout the transfer process is crucial.STIRAP was initially developed with applications in chemical dynamics in mind. That is why the original paper of 1990 was published in The Journal of Chemical Physics. However, as of about the year 2000, the unique capabilities of STIRAP and its robustness with respect to small variations of some experimental parameters stimulated many researchers to apply the scheme in a variety of other fields of physics. The successes of these efforts are documented in this collection of articles. In Part A the experimental success of STIRAP in manipulating or controlling molecules, photons, ions or even quantum systems in a solid-state environment is documented. After a brief introduction to the basic physics of STIRAP, the central role of the method in the formation of ultra-cold molecules is discussed, followed by a presentation of how precision experiments (measurement of the upper limit of the electric dipole moment of the electron or detecting the consequences of parity violation in chiral molecules) or chemical dynamics studies at ultra-low temperatures benefit from STIRAP. Next comes the STIRAP-based control of photons in cavities followed by a group of three contributions which highlight the potential of the STIRAP concept in classical physics by presenting data on the transfer of waves (photonic, magnonic and phononic) between respective wave guides. The works on ions or ion-strings discuss options for applications e.g. in quantum information. Finally, the success of STIRAP in the controlled manipulation of quantum states in solid-state systems, which are usually hostile towards coherent processes, is presented, dealing with data storage in rare-earth ion doped crystals and in NV-centers or even in superconducting quantum circuits. The works on ions and those involving solid-state systems emphasize the relevance of the results for quantum information protocols.Part B deals with theoretical work including further concepts relevant for quantum information or invoking STIRAP for the manipulation of matter waves. The subsequent articles discuss experiments underway to demonstrate the potential of STIRAP for populating otherwise inaccessible high-lying Rydberg states of molecules, or controlling and cooling the translational motion of particles in a molecular beam or the polarization of angular momentum states. The series of articles concludes with a more speculative application of STIRAP i...

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“…Provided sufficient xray intensity, these transfer schemes allow to place the entire population from the ground state into the isomeric state in a coherent and controlled manner. Prior theoretical studies have discussed the possibility of nuclear STIRAP in the context of high-energy gamma-ray transitions [23][24][25][26]. The peculiarities of the investigated 229 Th three-level system are that the two transitions to the upper state have low energy and narrow resonances, are almost degenerate in energy and have dominating internal conversion decay channels, with non-negligible multipole mixing.…”

Section: Introductionmentioning

confidence: 99%

Nuclear coherent population transfer to the $^{229m}$Th isomer using x-ray pulses

Kirschbaum,

Minkov,

Pálffy

2022

Preprint

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Population of the 8 eV 229m Th isomer via the second nuclear excited state at 29.19 keV by means of coherent x-ray pulses is investigated theoretically. We focus on two nuclear coherent population transfer schemes using partially overlapping x-ray pulses known from quantum optics: stimulated Raman adiabatic passage (STIRAP), and successive π pulses. Numerical results are presented for three possible experimental setups. Our results identify the Gamma Factory as the most promising scenario, where two ultraviolet pulses combined with relativistically accelerated ions deliver the required intensities for efficient isomer population. Our simulations require knowledge of the inband and cross-band nuclear transition probabilities. We give theoretically predicted values for the latter and discuss them in the context of recent experiments.

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Nuclear-state population transfer by a train of coincident pulses

Cited by 13 publications

References 36 publications

Steering population transfer of the Na₂molecule by an ultrashort pulse train

Steering population transfer of the Na₂molecule by an ultrashort pulse train

Roadmap on STIRAP applications

Nuclear coherent population transfer to the $^{229m}$Th isomer using x-ray pulses

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Nuclear-state population transfer by a train of coincident pulses

Cited by 13 publications

References 36 publications

Steering population transfer of the Na2molecule by an ultrashort pulse train

Steering population transfer of the Na2molecule by an ultrashort pulse train

Roadmap on STIRAP applications

Nuclear coherent population transfer to the $^{229m}$Th isomer using x-ray pulses

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About

Steering population transfer of the Na₂molecule by an ultrashort pulse train

Steering population transfer of the Na₂molecule by an ultrashort pulse train