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Coulomb-corrected strong-field quantum trajectories beyond dipole approximation
Atomic Physics · Submitted 1 Aug 2017
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Only the interplay between Lorentz and Coulomb force may give rise to such counterintuitive dynamics.
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The abstract, sentence by sentence
Non-dipole effects in strong-field photoelectron momentum spectra have been revealed experimentally [C.T.L. Smeenk et al., Phys. Rev. Lett. 106, 193002 (2011); A. Ludwig et al., Phys. Rev. Lett. 113, 243001 (2014)]. For certain laser parameters and photoelectron momenta the spectra were found to be shifted against the laser propagation direction whereas one would naively assume that the radiation pressure due to the $\vec{v}\times\vec{B}$-force pushes electrons always in propagation direction. Only the interplay between Lorentz and Coulomb force may give rise to such counterintuitive dynamics. In this work, we calculate the momentum-dependent shift in and against the propagation direction by extending the quantum trajectory-based Coulomb-corrected strong-field approximation beyond the dipole approximation. A semi-analytical treatment where both magnetic and Coulomb force are treated perturbatively but simultaneously reproduces the results from the full numerical solution of the equations of motion.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Non-dipole effects in strong-field photoelectron momentum spectra have been revealed experimentally [C.T.L. | background 1.00 | 0.04 | 0.02 | asserted 0.99 |
| s1 | Smeenk et al., Phys. Rev. Lett. 106, 193002 (2011); A. | background 1.00 | 0.03 | 0.02 | unclear 0.95 |
| s2 | Ludwig et al., Phys. Rev. Lett. 113, 243001 (2014)]. | background 1.00 | 0.03 | 0.02 | unclear 0.81 |
| s3 | For certain laser parameters and photoelectron momenta the spectra were found to be shifted against the laser propagation direction whereas one would naively assume that the radiation pressure due to the $\vec{v}\times\vec{B}$-force pushes electrons always in propagation direction. | background 0.91 | 0.09 | 0.10 | asserted 1.00 |
| s4 | Only the interplay between Lorentz and Coulomb force may give rise to such counterintuitive dynamics. | interpretation 0.65 | 0.10 | 0.19 | hedged possibility 0.99 |
| s5 | In this work, we calculate the momentum-dependent shift in and against the propagation direction by extending the quantum trajectory-based Coulomb-corrected strong-field approximation beyond the dipole approximation. | contribution 0.90 | 0.95 | 0.39 | asserted 1.00 |
| s6 | A semi-analytical treatment where both magnetic and Coulomb force are treated perturbatively but simultaneously reproduces the results from the full numerical solution of the equations of motion. | method 0.84 | 0.89 | 0.24 | asserted 0.99 |
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The paper
Original abstract
Non-dipole effects in strong-field photoelectron momentum spectra have been revealed experimentally [C.T.L. Smeenk et al., Phys. Rev. Lett. 106, 193002 (2011); A. Ludwig et al., Phys. Rev. Lett. 113, 243001 (2014)]. For certain laser parameters and photoelectron momenta the spectra were found to be shifted against the laser propagation direction whereas one would naively assume that the radiation pressure due to the $\vec{v}\times\vec{B}$-force pushes electrons always in propagation direction. Only the interplay between Lorentz and Coulomb force may give rise to such counterintuitive dynamics. In this work, we calculate the momentum-dependent shift in and against the propagation direction by extending the quantum trajectory-based Coulomb-corrected strong-field approximation beyond the dipole approximation. A semi-analytical treatment where both magnetic and Coulomb force are treated perturbatively but simultaneously reproduces the results from the full numerical solution of the equations of motion.
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