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We demonstrate a general three-dimensional semiclassical model as a powerful technique for the study of correlated multi-electron escape in atoms driven by infrared laser pulses at intensities where electron-electron correlation prevails.…

Atomic Physics · Physics 2023-04-26 Agapi Emmanouilidou , Matthew Benjamin Peters , Georgios Petros Katsoulis

Intense light with frequencies above typical atomic or molecular ionization potentials as provided by free-electron lasers couples many photons into extended targets such as clusters and biomolecules. This implies, in contrast to…

Atomic and Molecular Clusters · Physics 2011-05-25 Christian Gnodtke , Ulf Saalmann , Jan-Michael Rost

A computer program is presented by which one may calculate the multiple electric dipole, electric quadrupole and magnetic dipole Coulomb excitation with relativistic heavy ions. The program applies to an arbitrary nucleus, specified by the…

Nuclear Experiment · Physics 2009-10-31 C. A. Bertulani

The first simulations employing a kinetic treatment of both fuel and shell ions to model inertial confinement fusion experiments are presented, including results showing the importance of kinetic physics processes in altering fusion burn. A…

Plasma Physics · Physics 2016-11-23 Ari Le , T. J. T. Kwan , M. J. Schmitt , H. W. Herrmann , S. H. Batha

We demonstrate that fast removal of many electrons uncovers initial correlations of atoms in a finite sample through a pronounced peak in the kinetic-energy spectrum of the exploding ions. This maximum is the result of an intricate…

Atomic and Molecular Clusters · Physics 2013-03-27 Ulf Saalmann , Alexey Mikaberidze , Jan M. Rost

We investigate the ionization dynamics of atoms irradiated by an intense laser field using a semiclassical model that includes magnetic Lorentz force in the rescattering process. We find that, the electrons tunneled with different initial…

Atomic Physics · Physics 2017-01-25 J. F. Tao , Q. Z. Xia , J. Cai , L. B. Fu , J. Liu

A systematic study of pressure ionization is carried out in the chemical picture by the example of fluid helium. By comparing the variants of the chemical model, it is demonstrated that the behavior of pressure ionization depends on the…

Plasma Physics · Physics 2016-12-13 Qiong Li , Hai-Feng Liu , Gong-Mu Zhang , Yan-Hong Zhao , Guo Lu , Ming-Feng Tian , Hai-Feng Song

We solve the hydrodynamic-ballistic equations of motion for a one-dimensional time-dependent Thomas-Fermi model of Cl_2 exposed to an intense subpicosecond laser field, and observe simultaneous multielectron ionization and molecular…

Atomic Physics · Physics 2009-10-30 Miroslaw Brewczyk , Kazimierz Rzazewski , Charles W. Clark

We present a simple quantum mechanical model to describe Coulomb explosion of H$_2^+$ by short, intense, infrared laser pulses. The model is based on the length gauge version of the molecular strong-field approximation and is valid for…

Atomic Physics · Physics 2009-11-23 H. A. Leth , L. M. Madsen , J. F. McCann

The analysis of correlation energy of the simplest first approximation of a variational method for the intrashell states of two-electron atoms is the purpose of the present work. This method allows to divide energy of atom on Coulomb and…

Atomic Physics · Physics 2008-10-23 V. V. Kavera

We study nuclear reactions induced by virtual photons associated with Lorentz-boosted Coulomb fields of ultrarelativistic heavy ions. Evaporation, fission and multifragmentation mechanisms are included in a new RELDIS code, which describes…

Nuclear Theory · Physics 2009-10-31 I. A. Pshenichnov , I. N. Mishustin , J. P. Bondorf , A. S. Botvina , A. S. Iljinov

The disassembly of molecular clusters $(N_2)_n$ ($n$=50-3000) in strong optical fields is investigated using two-dimensional time-of-flight spectrometry. Very highly charged ions are formed with a two-component energy distribution. A…

Atomic and Molecular Clusters · Physics 2009-11-10 M. Krishnamurthy , D. Mathur , V. Kumarappan

The right kind of theoretical treatment of direct Coulomb ionization of inner-shell of target atoms including multiple ionization of their outer-shells by using accurate x-ray fluorescence yield data and electron capture by projectile ions…

Atomic Physics · Physics 2025-09-15 Manpreet Kaur , T. Nandi

In order to describe heavy-ion fusion reactions around the Coulomb barrier with an actinide target nucleus, we propose a model which combines the coupled-channels approach and a fluctuation-dissipation model for dynamical calculations. This…

Nuclear Theory · Physics 2015-06-04 Y. Aritomo , K. Hagino , K. Nishio , S. Chiba

We present an effective theoretical model to simulate observables in time-resolved two-fragment Coulomb explosion experiments. The model employs the potential energy curves of the neutral molecule and the doubly charged cation along a…

Chemical Physics · Physics 2025-03-25 Yijue Ding

Ionization of matter by energetic radiation generally causes complex secondary reactions which are hard to decipher. Using large helium nanodroplets irradiated by XUV photons, we show that the full chain of processes ensuing primary…

Atomic and Molecular Clusters · Physics 2023-07-26 L. Ben Ltaief , K. Sishodia , S. Mandal , S. De , S. R. Krishnan , C. Medina , N. Pal , R. Richter , T. Fennel , M. Mudrich

Coulomb breakup of a projectile in the Coulomb field of a fully stripped heavy nucleus is at present one of the most popular experimental methods to obtain information on reactions of interest in nuclear astrophysics. Its theoretical…

Nuclear Theory · Physics 2009-11-11 E. O. Alt , B. F. Irgaziev , A. M. Mukhamedzhanov

Lepto-nuclear colliders offer unique experimental opportunities to probe QCD in an extended medium. Of the many possibilities, three experiments are described here that are clearly feasible and of high scientific importance. First, a direct…

Nuclear Experiment · Physics 2010-11-19 W K Brooks

We provide the experimental evidence that the single electron capture process in slow collisions between O$^{3+}$ ions and neon dimer targets leads to an unexpected production of low-energy electrons. This production results from the…

A self-consistent-field theory is given for the electronic collective modes of a chain containing a finite number, $N$, of Coulomb-coupled spherical two-dimensional electron gases (S2DE's) arranged with their centers along a straight line,…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Liubov Zhemchuzhna , Godfrey Gumbs , Andrii Iurov , Danhong Huang , Bo Gao
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