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[hal-02153869] Fall-back time for photo-ionized Cs atoms attached to superfluid 4He nanodroplets

We have studied the dynamic evolution of a Cs atom photo-excited from 6s to 6p and 7s states on a helium droplet using time-dependent 4He-DFT simulations. Depending on the excited electronic state, the Cs impurity remains on the droplet surface or it is ejected. Upon subsequent photo-ionization of the excited Cs atom the resulting Cs+ cation may either be ejected or come back to the droplet, depending on the time delay between photo-excitation and photo-ionization. We have calculated the critical time delay separating these two different behaviors, as well as final ion velocities. These observables will be used for future comparison with planned pump-probe experiments.

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[hal-03086640] Alkali atoms attached to vortex-hosting helium nanodroplets


[hal-02512933] Density-functional tight-binding: basic concepts and applications to molecules and clusters


[hal-02916953] Computation and analysis of bound vibrational spectra of the Neon tetramer using row orthonormal hyperspherical coordinates.


[hal-02881940] Fragmentation dynamics of Ar4He1000 upon electron impact ionization: competition between ion ejection and trapping


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[hal-02372604] Coherent quantum dynamics launched by incoherent relaxation in a quantum circuit simulator of a light-harvesting complex


[hal-01685236] Electronic field emission models beyond the Fowler-Nordheim one


[hal-02349768] A three dimensional numerical quantum mechanical model of field electron emission from metallic surfaces covered with carbon adsorbates


[tel-02333474] Trajectory-based methods for the study of ultrafast quantum dynamics



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Dynamique quantique Casimir effect Density functional theory Calcium Dissipative dynamics Anharmonicity STATE Composés organiques à valence mixte Effets transitoires Diels-Alder reaction Classical trajectory CHEMICAL-REACTIONS ATOMS Coordonnées hypersphériques elliptiques COLLISION ENERGY ELECTRONIC BUBBLE FORMATION DFTB Cryptochrome Dynamique mixte classique ENTANGLEMENT Transport électronique Cope rearrangement Cluster Dynamique moléculaire quantique Excitation energy transfer EET Effets inélastiques Quantum dynamics Photophysics Cosmological constant ENTROPY Muonic hydrogen CLASSICAL TRAJECTORY METHOD Théorie de la fonctionnelle de la densité Collisions ultra froides DRIVEN DENSITY Slow light Molecules Bohmian trajectories Rydberg atoms DIFFERENTIAL CROSS-SECTIONS Agrégats ELECTRON-NUCLEAR DYNAMICS Collision frequency Coherent control Dark energy Coulomb presssure DYNAMICS Electronic Structure MODEL COMPLEX ABSORBING POTENTIALS Cesium WAVE-PACKET DYNAMICS Electrostatic accelerators Dynamique non-adiabatique ELECTRON DYNAMICS Close-coupling Propagation effects Ejection DEPENDENT SCHRODINGER-EQUATION QUANTUM OPTIMAL-CONTROL Theory COHERENT CONTROL Dynamics Effets isotopiques Energy spectrum Excited states Half revival Tetrathiafulvalene DEMO Ultrashort pulses Extra dimension 4He-TDDFT simulation Alkali-halide ENERGY Electron transfer ALGORITHM MCTDH Ab initio calculations Atomic clusters Fonction de Green hors-équilibre Clusters AR Non-equilibrium Green's function Atomic collisions Effets de propagation Deformation Electronic transport inelastic effects CONICAL INTERSECTION Electron-surface collision Wave packet interferences CAVITY Contrôle cohérent Transitions non-adiabatiques Collisions des atomes Dissipative quantum methods Ab-initio DISSIPATION Electric field Drops