English
Related papers

Related papers: Radiation-field-driven ionization in laser-assiste…

200 papers

We study the break-up of 8B in collisions with heavy-ions. The process is described in terms of inelastic excitations leading to states in the continuum. The effects of the nuclear and coulomb fields are included on the same footing in the…

Nuclear Theory · Physics 2016-09-08 C. H. Dasso , S. M. Lenzi , A. Vitturi

The robustness of a structured collimation device is discussed for an intense-laser-produced ion beam. In this paper the ion beam collimation is realized by the solid structured collimation device, which produces the transverse electric…

Plasma Physics · Physics 2015-03-19 S. Kawata , M. Takano , D. Kamiyama , T. Nagashima , D. Barada , Y. J. Gu , X. Li , Q. Yu , Q. Kong , P. X. Wang

The electromagnetic radiation pressure becomes dominant in the interaction of the ultra-intense electromagnetic wave with a solid material, thus the wave energy can be transformed efficiently into the energy of ions representing the…

Plasma Physics · Physics 2007-05-23 T. Esirkepov , M. Borghesi , S. V. Bulanov , G. Mourou , T. Tajima

We study ultracold atom-ion collisions in the presence of an external magnetic field. At low collision energy the field can drastically modify the translational motion of the ion, which follows quantized cyclotron orbits. We present a…

Quantum Gases · Physics 2015-05-28 Andrea Simoni , Jean-Michel Launay

We use a quantum trajectory-based semi-classical method to account for Coulomb interaction between the photoelectron and the parent ion in the classically forbidden, sub-barrier region during strong-field tunneling ionization processes. We…

Atomic Physics · Physics 2017-11-21 Tian-Min Yan , D. Bauer

Electromagnetic field produced in high-energy heavy-ion collisions contains much useful information, because the field can be directly related to the motion of the matter in the whole stage of the reaction. One can divide the total…

Nuclear Theory · Physics 2009-10-31 T. Osada , Y. Hama

We study the motion of two atoms trapped at distant positions in the field of a driven standing wave high-Q optical resonator. Even without any direct atom-atom interaction the atoms are coupled through their position dependent influence on…

Quantum Physics · Physics 2007-05-23 J. K. Asbóth , P. Domokos , H. Ritsch

Photoelectron spectra obtained from the ab initio solution of the time-dependent Schr\"odinger equation can be in striking disagreement with predictions by the strong-field approximation (SFA) not only at low energy but also around twice…

Atomic Physics · Physics 2016-12-14 Th. Keil , S. V. Popruzhenko , D. Bauer

Quantum correlations between two neighbor atoms are studied. It is assumed that one atomic system comprises a single auto-ionizing level and the other atom does not contain any auto-ionizing level. The excitation of both atoms is achieved…

Quantum Physics · Physics 2015-06-22 Vlasta Peřinová , Antonín Lukš , Jaromír Křepelka , Jan Peřina

We extend the semiclassical two-step model for strong-field ionization that describes quantum interference and accounts for the Coulomb potential beyond the semiclassical perturbation theory to the hydrogen molecule. In the simplest case of…

Atomic Physics · Physics 2019-03-27 N. I. Shvetsov-Shilovski , M. Lein , K. Tőkési

We discuss the possibility of non-exponential tunneling ionization of atoms irradiated by intense laser field. This effect can occur at times, which are greater than the lifetime of a system under consideration. The mechanism for…

Atomic Physics · Physics 2015-03-02 A. M. Ishkhanyan , V. P. Krainov

Test particle studies of electron scattering on ions, in an oscillatory electromagnetic field have shown that standard theoretical assumptions of small angle collisions and phase independent orbits are incorrect for electron trajectories…

Plasma Physics · Physics 2009-11-07 A. Brantov , W. Rozmus , V. Yu. Bychenkov , V. T. Tikhonchuk , R. Sydora , C. E. Capjack

We investigate the liberation of an atomic electron by a linearly polarized single-cycle near-infrared laser pulse having a peak intensity that ensures tunneling. Based on phase space analysis and energy distribution in the instantaneous…

Quantum Physics · Physics 2021-09-15 Szabolcs Hack , Szilárd Majorosi , Mihály G. Benedict , Sándor Varró , Attila Czirják

Conical intersections are crossing points or lines between two or more adiabatic electronic potential energy surfaces in the multi-dimensional coordinate space of colliding atoms and molecules. Conical intersections and corresponding…

Atomic Physics · Physics 2023-04-19 Hui Li , Ming Li , Alexander Petrov , Eite Tiesinga , Svetlana Kotochigova

The ionization of atomic hydrogen in intense laser fields is studied theoretically. The calculations were performed applying both quantummechanical and classical approaches. Treating the problem quantummechanically, the time dependent…

Atomic Physics · Physics 2009-11-13 S. Borbély , K. Tőkési , L. Nagy

Radiation reaction effects on ion acceleration in laser foil interaction are investigated via analytical modeling and multi-dimensional particle-in-cell simulations. We find the radiation effects are important in the area where some…

Plasma Physics · Physics 2009-09-29 Min Chen , Alexander Pukhov , Tong-Pu Yu , Zheng-Ming Sheng

We present a numerical method for investigating the non-perturbative quantum mechanical interaction of light with atoms in two dimensions, without a basis expansion. This enables us to investigate intense laser-atom interactions with light…

Quantum Physics · Physics 2009-10-30 M. Protopapas , D. G. Lappas , P. L. Knight

Coherent nuclear excitation in strongly laser-driven muonic atoms is calculated. The nuclear transition is caused by the time-dependent Coulomb field of the oscillating charge density of the bound muon. A closed-form analytical expression…

Nuclear Theory · Physics 2014-11-18 A. Shahbaz , C. Müller , T. J. Buervenich , C. H. Keitel

We investigate dynamics of atomic and molecular systems exposed to intense, shaped chaotic fields and a weak femtosecond laser pulse theoretically. As a prototype example, the photoionization of a hydrogen atom is considered in detail. The…

Quantum Physics · Physics 2015-05-18 Kamal P Singh , Jan M Rost

We discuss a new mechanism for the electron capture in fast ion-atom collisions. Similarly like in the radiative capture, where the electron transfer occurs due to photon emission, within the mechanism under consideration the electron…

Atomic Physics · Physics 2008-08-06 A. B. Voitkiv , B. Najjari , J. Ullrich