Quantum model simulations of attosecond electron diffraction

摘要: Ultrafast diffraction with free attosecond electron pulses promises insight into the four-dimensional motion of charge density in atoms, molecules and condensed matter. Here we consider quantum dynamics electron-electron scattering process on an time scale. By numerically solving time-dependent two-electron Schrodinger equation, investigate interaction incoming keV-range wavepacket by bound aligned H 2 + molecule, using a one-dimensional model. Our findings reveal ratio elastic to inelastic contributions, role exchange interaction, influence molecular diffraction. Momentum transfer during process, from mediated nuclei, leaves state coherent oscillation recurrences. Entanglement causes related state-selective oscillations phase shift scattered electron. Two scenarios distinguishable indistinguishable electrons yield equivalent results, irrespective electronic spins. This suggests employ scenario electrons, which is computationally less demanding. support possibility for imaging density, but also suggest application inducing dynamics.