How to understand the tunneling in attosecond experiment?

Kullie, Ossama

doi:10.1016/j.aop.2018.01.001

Cited by 9 publications

(22 citation statements)

References 117 publications

(283 reference statements)

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“…, hence nothing happens, i.e. the electron remains in its ground state undisturbed, which shows that our model is consistent, for details see [6,10,11]. It is worthwhile to mention that Chang et al [37] found a better estimation of the atomic field strength, it is slightly larger than the estimation of Augst et al [31] ( F Fa a Cha Aug ), which is used in our work.…”

Section: The Tunneling Timesupporting

confidence: 78%

“…In [10] it was shown that our tunneling model (section 2) in the attosecond experiments [5] is intriguingly similar to this Gedanken experiment, where the former can be seen as a realization to the later. And as mentioned, the agreement of the model with the experimental result of [5], is impressively good, see [6,10].…”

Section: Introductionsupporting

confidence: 62%

“…However, the later issue is rather resolved since Galapon [14][15][16] showed that there is no a priori reason to exclude the existence of self-adjoint time operators, as mentioned in section 1. See also [6] where a comprehensive discussion is given.…”

Section: The Hydrogen Atommentioning

confidence: 99%

“…Indeed, the discussion is still ongoing and both pictures of real or imaginary T-time offer a fruitful contribution. For a detailed discussion we kindly refer the reader to [6], and to [11,45] in relation to various T-time definitions.…”

Section: The Hydrogen Atommentioning

confidence: 99%

“…The advent of attophysics opens new perspectives in the study of time resolved phenomena in atomic and molecular physics [1][2][3][4], the tunneling process and the tunneling time (T-time) in atoms and molecules [5][6][7][8][9]. Attosecond science (asec=10 −18 s) concerns primarily electronic motion and energy transport on atomic scales and is of fundamental interest to the physics in general.…”

Section: Introductionmentioning

confidence: 99%

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Tunneling time in attosecond experiment for hydrogen atom

Kullie

2018

J. Phys. Commun.

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Tunneling and tunneling time are hot debated and very interesting issues because of their fundamental role in the quantum mechanics. The measurement of the tunneling time in today's attosecond and strong field (low-frequency) experiments, despite its controversial discussion offers a fruitful opportunity to understand the time measurement and the role of time in quantum mechanics. In previous work Kullie (2015 Phys. Rev. A 92, 052118), we suggested a model and derived a simple relation to calculate the tunneling time, which showed a good agreement with the experimental result for He-atom. In the present work we analyze and discuss our model considering the experimental result for H-atom, which is obtained recently by Satya Sainadh et al (2017 arXiv:1707.05445). In the tunneling region, we find that our model shows a good agreement with their experimental result (similar to the He-atom in our previous work), and with the accompanied time-dependent Schrödiger equation simulations. However, Sainadh et al use a different picture of the tunneling, in which tunneling time becomes an imaginary quantity. Whereas our model represents a real tunneling time picture, precisely a delay time with respect to the ionization time at the atomic field strength. Moreover, even though the above-threshold-ionization is beyond the tunneling regime, we still see that the actual ionization time is related to our model. However, crucial points arise and keep some questions open especially on the experimental side.

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Section: The Tunneling Timesupporting

confidence: 78%

Section: Introductionsupporting

confidence: 62%

Section: The Hydrogen Atommentioning

confidence: 99%

Section: The Hydrogen Atommentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tunneling time in attosecond experiment for hydrogen atom

Kullie

2018

J. Phys. Commun.

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Statistical approach to tunneling time in attosecond experiments

Demir

Güner

2017

Annals of Physics

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Tunneling, transport of particles through classically forbidden regions, is a pure quantum phenomenon. It governs numerous phenomena ranging from single-molecule electronics to donor-acceptor transition reactions. The main problem is the absence of a universal method to compute tunneling time. This problem has been attacked in various ways in the literature. Here, in the present work, we show that a statistical approach to the problem, motivated by the imaginary nature of time in the forbidden regions, lead to a novel tunneling time formula which is real and subluminal (in contrast to various known time definitions implying superluminal tunneling). This entropic tunneling time, as we call it, shows good agreement with the tunneling time measurements in laser-driven He ionization. Moreover, it sets an accurate range for long-range electron transfer reactions. The entropic tunneling time is general enough to extend to the photon and phonon tunneling phenomena.

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Time delay and nonadiabatic calibration of the attoclock. Multiphoton process versus tunneling in strong field interaction

Kullie,

Ivanov

2024

Annals of Physics

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How to understand the tunneling in attosecond experiment?

Cited by 9 publications

References 117 publications

Tunneling time in attosecond experiment for hydrogen atom

Tunneling time in attosecond experiment for hydrogen atom

Statistical approach to tunneling time in attosecond experiments

Time delay and nonadiabatic calibration of the attoclock. Multiphoton process versus tunneling in strong field interaction

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