Gauge invariant canonical symplectic algorithms for real-time lattice strong-field quantum electrodynamics
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2021)127
Abstract: A class of high-order canonical symplectic structure-preserving geometric algorithms are developed for high-quality simulations of the quantized Dirac-Maxwell theory based strong-field quantum electrodynamics (SFQED) and relativistic quantum plasmas (RQP) phenomena. With minimal coupling, the Lagrangian… read more here.
Keywords: field; electrodynamics; lattice; strong field ... See more keywords
The hyperfine puzzle of strong-field bound-state QED
Sign Up to like & getrecommendations! Published in 2019 at "Hyperfine Interactions"
DOI: 10.1007/s10751-019-1569-8
Abstract: The hyperfine splitting in heavy highly charged ions provide the means to test QED in extremely strong magnetic fields. In order to provide a meaningful test, the splitting has to be measured in H-like and… read more here.
Keywords: strong field; field bound; bound state; hyperfine ... See more keywords
Transition from strong-field sequential to nonsequential double ionization at near-infrared wavelengths and low intensities
Sign Up to like & getrecommendations! Published in 2018 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-018-1620-z
Abstract: Within a quantum-mechanical model, we investigate strong-field double ionization of a model helium atom by near-infrared, linearly polarized laser pulses at intensities far below the recollision threshold. The quantum simulations show a clear mechanism change… read more here.
Keywords: strong field; sequential nonsequential; near infrared; double ionization ... See more keywords
Strong field dissociative ionization of the D2+: Nuclear wave packet analysis
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.01.067
Abstract: Abstract Theoretical ab initio investigation of strong field dissociative ionization of the D 2 + molecule in the multiphoton regime is reported. The dynamics is initiated by ultrashort laser pulses for fixed molecular axis orientations.… read more here.
Keywords: wave packet; strong field; nuclear wave; field dissociative ... See more keywords
Ultrafast Strong-Field Tunneling Emission in Graphene Nanogaps
Sign Up to like & getrecommendations! Published in 2018 at "ACS Photonics"
DOI: 10.1021/acsphotonics.8b00857
Abstract: We demonstrate subcycle electron pulse generation in a nanogap of graphene when irradiated by a femtosecond laser pulse in the near-infrared region (800 nm). A strong photoinduced emission was prod... read more here.
Keywords: tunneling emission; strong field; graphene; ultrafast strong ... See more keywords
High precision hyperfine measurements in Bismuth challenge bound-state strong-field QED
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/ncomms15484
Abstract: Electrons bound in highly charged heavy ions such as hydrogen-like bismuth 209Bi82+ experience electromagnetic fields that are a million times stronger than in light atoms. Measuring the wavelength of light emitted and absorbed by these… read more here.
Keywords: field; strong field; hyperfine; field qed ... See more keywords
Retrieval of Angle-Dependent Strong-Field Ionization by Using High Harmonics Generated from Aligned N2 Molecules
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/38/12/123301
Abstract: We propose a method to retrieve the angle-dependent strong-field ionization of highest occupied molecular orbital (HOMO) from high-order harmonic generation (HHG) of aligned molecules. This method is based on the single-molecule quantitative rescattering model with… read more here.
Keywords: angle dependent; strong field; harmonics; aligned molecules ... See more keywords
Loops and polarization in strong-field QED
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abf274
Abstract: In a previous paper we showed how higher-order strong-field-QED processes in long laser pulses can be approximated by multiplying sequences of ‘strong-field Mueller matrices’. We obtained expressions that are valid for arbitrary field shape and… read more here.
Keywords: field; strong field; polarization; field qed ... See more keywords
Single particle detection system for strong-field QED experiments
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ac4283
Abstract: Measuring signatures of strong-field quantum electrodynamics (SF-QED) processes in an intense laser field is an experimental challenge: it requires detectors to be highly sensitive to single electrons and positrons in the presence of the typically… read more here.
Keywords: system; field; particle detection; strong field ... See more keywords
Strong field lensing by Damour-Solodukhin wormhole
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2018/07/027
Abstract: We investigate the strong field lensing observables for the Damour-Solodukhin wormhole and examine how small the values of the deviation parameter $\lambda $ need be for reproducing the observables for the Schwarzschild black hole. While… read more here.
Keywords: lensing damour; strong field; field lensing; solodukhin wormhole ... See more keywords
Taking snapshots of a moving electron wave packet in molecules using photoelectron holography in strong-field tunneling ionization
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics B"
DOI: 10.1088/1674-1056/abf7a7
Abstract: Coherent superposition of electronic states induces attosecond electron motion in molecules. We theoretically investigate the strong-field ionization of this superposition state by numerically solving the time-dependent Schrödinger equation. In the obtained photoelectron momentum distribution, an… read more here.
Keywords: superposition; wave packet; strong field; superposition state ... See more keywords