Landau-Dykhne approach for relativistic electron momentum and angular distributions for the ionization of multicharged atomic ions by superintense laser fields

Крайнов, В. П.; Sofronov, A. V.

doi:10.1103/physreva.77.063418

Cited by 10 publications

(5 citation statements)

References 19 publications

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“…3. As it is already mentioned, the distribution is located around a parabola, see also [59][60][61][62][63]. Characteristic features of the momentum distribution in the relativistic regime are the large parabolic wings corresponding to the large longitudinal momentum (along the laser propagation direction) which arise the free electron motion in the laser field.…”

Section: Introductionmentioning

confidence: 72%

Above-threshold ionization with highly charged ions in superstrong laser fields. II. Relativistic Coulomb-corrected strong-field approximation

2013

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We develop a relativistic Coulomb-corrected strong field approximation (SFA) for the investigation of spin effects at above-threshold ionization in relativistically strong laser fields with highly charged hydrogen-like ions. The Coulomb-corrected SFA is based on the relativistic eikonal-Volkov wave function describing the ionized electron laser-driven continuum dynamics disturbed by the Coulomb field of the ionic core. The SFA in different partitions of the total Hamiltonian is considered. The formalism is applied for direct ionization of a hydrogen-like system in a strong linearly polarized laser field. The differential and total ionization rates are calculated analytically. The relativistic analogue of the Perelomov-Popov-Terent'ev ionization rate is retrieved within the SFA technique. The physical relevance of the SFA in different partitions is discussed. PACS numbers: 32.80.Rm, II. RELATIVISTIC COULOMB-CORRECTED SFAWe consider the interaction of a highly-charge ion with a strong laser field in the relativistic regime which is described arXiv:1301.5764v1 [physics.atom-ph]

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Section: Introductionmentioning

confidence: 72%

Above-threshold ionization with highly charged ions in superstrong laser fields. II. Relativistic Coulomb-corrected strong-field approximation

2013

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“…where we have further used q z (t) = −2I p /(3c) via Eq. (24). As a result, the under-the-barrier propagator yields…”

Section: A Standard Sfamentioning

confidence: 94%

“…In particular, the differential and total ionization rates were calculated using these methods. The photoelectron momentum distribution in the relativistic regime of above-threshold ionization was well explained by those calculations [19][20][21][22][23][24][25]. However, the details of the electron spin dynamics in the relativistic tunnel-ionization regime still needs further elucidation.…”

Section: Introductionmentioning

confidence: 94%

Above-threshold ionization with highly charged ions in superstrong laser fields. III. Spin effects and their dependence on laser polarization

2015

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Spin effects in the tunneling regime of strong-field ionization of hydrogenlike highly charged ions in linearly as well as circularly polarized laser fields are investigated. The impact of the polarization of a laser field on the spin effects is analyzed. Spin-resolved differential ionization rates are calculated employing the relativistic Coulombcorrected strong-field approximation developed in the previous paper of the series. Analytical expressions for spin asymmetries and the spin-flip probability, depending on the laser's polarization, are obtained for the photoelectron momentum corresponding to the maximum of the tunneling probability. A simple intuitive model is developed for the description of spin dynamics in tunnel ionization. The spin flip is shown to be experimentally observable by using moderate highly charged ions with a charge of the order of 20 and a laser field with an intensity of I ∼ 10 22 W/cm 2 .

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“…Zitterbewegung is distinct from quiver motion, which is the oscillatory motion of a charged object in an oscillating electric field, such as an electron irradiated by a laser [46]. Zitter-bewegung is also different from quantum beats of the particle density in propagation and tunneling [47].…”

Section: B Electron Velocity and Zitterbewegungmentioning

confidence: 99%

Zitterbewegung and the Charge of an Electron

Davis

2020

Preprint

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Dirac's Relativistic Wave Equation implies a measured electron velocity of ±c in any direction, in contradiction to Special Relativity and observation. It is shown in this article that this anomalous electron velocity reveals an internal structure of the electron whereby the mass and the charge of the electron cannot be described by the same position operator. The measured velocity of electron mass is always less than c in any direction but charge can be displaced at the speed of light. This speed is realizable only when the electron is in a state that is a superposition of positive and negative energy states, also known as a zitterbewegung state. It is shown that in zitterbewegung it is the charge and not the mass that undergoes rapid spatial oscillation, and that there are measurable consequences of this charge zitterbewegung. Zitterbewegung of charge also occurs in an entangled electron-positron pair created by a strong electric field.

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Landau-Dykhne approach for relativistic electron momentum and angular distributions for the ionization of multicharged atomic ions by superintense laser fields

Cited by 10 publications

References 19 publications

Above-threshold ionization with highly charged ions in superstrong laser fields. II. Relativistic Coulomb-corrected strong-field approximation

Above-threshold ionization with highly charged ions in superstrong laser fields. II. Relativistic Coulomb-corrected strong-field approximation

Above-threshold ionization with highly charged ions in superstrong laser fields. III. Spin effects and their dependence on laser polarization

Zitterbewegung and the Charge of an Electron

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