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相关论文: Understanding the Coulomb explosion through neutra…

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Breakup reactions are generally quite complicated, they involve nuclear and electromagnetic forces including interference effects. Coulomb dissociation is an especially simple and important mechanism since the perturbation due to the…

核理论 · 物理学 2007-05-23 G. Baur , K. Hencken , D. Trautmann , S. Typel , H. H. Wolter

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…

核理论 · 物理学 2014-11-18 A. Shahbaz , C. Müller , T. J. Buervenich , C. H. Keitel

The paper presents a theoretical work on the dynamics of Coulomb explosion for spherical nanoplasmas composed by two different ion species. Particular attention has been dedicated to study the energy spectra of the ions with the larger…

等离子体物理 · 物理学 2016-03-02 E. Boella , B. Peiretti Paradisi , A. D'Angola , G. Coppa , L. O. Silva

The Moliere theory of multiple Coulomb scattering is modified to take into account difference between scattering off atomic nuclei and electron. A simple analytical expression for angular distribution of charged particles passing through a…

高能物理 - 唯象学 · 物理学 2008-11-26 S. I. Striganov

An excited two-atom system can decay via different competing relaxation processes. If the excess energy is sufficiently high the system may not only relax via spontaneous emission but can also undergo interatomic Coulombic decay (ICD) or…

量子物理 · 物理学 2022-04-27 Janine Franz , Stefan Yoshi Buhmann

Model calculations that include the effects of irreversible, environmental couplings on top of a coupled-channels dynamical description of the collision of two complex nuclei are presented. The Liouville-von Neumann equation for the…

We present a theory of Coulomb blockade oscillations in tunneling through a pair of quantum dots connected by a tunable tunneling junction. The positions and amplitudes of peaks in the linear conductance are directly related, respectively,…

凝聚态物理 · 物理学 2009-10-28 K. A. Matveev , L. I. Glazman , H. U. Baranger

Multiply charged actinide molecules provide a unique platform to study fundamental physics and the chemical bond under extreme conditions. Beyond the inherently large relativistic effects associated with a high proton number $Z$, an…

Fragmentation of nuclear system by tunneling is discussed in a molecular dynamics simulation coupled with imaginary time method. In this way we obtain informations on the fragmenting systems at low densities and temperatures. These…

核理论 · 物理学 2009-11-07 Toshiki Maruyama , Aldo Bonasera , Satoshi Chiba

We study the formation of highly excited neutral atoms during the break-up of strongly-driven molecules. Past work on this significant phenomenon has shown that during the formation of highly excited neutral atoms ($\mathrm{H^{*}}$) during…

原子物理 · 物理学 2015-06-19 H. Price , C. Lazarou , A. Emmanouilidou

Intense, ultrashort pulses of 800 nm laser light (12 fs, $\sim$4 optical cycles) of peak intensity 5$\times$10$^{14}$ W cm$^{-2}$ have been used to irradiate gas-phase Xe$_n$ clusters ($n$=500-25,000) so as to induce multiple ionization and…

原子与分子团簇 · 物理学 2015-05-19 D. Mathur , F. A. Rajgara

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…

原子与分子团簇 · 物理学 2009-11-10 M. Krishnamurthy , D. Mathur , V. Kumarappan

The time dependent Schroedinger equation is solved analytically for a simplified model of moving infinite walls. A new knock-out mode is described which might occur during heavy ion collisions. The outer shell-nucleons are ionised due to…

核理论 · 物理学 2009-11-06 Klaus Morawetz , Pavel Lipavský

The ion phase-space dynamics in the Coulomb explosion of very large ($\sim 10^6 - 10^7$ atoms) deuterium clusters can be tailored using two consecutive laser pulses with different intensities and an appropriate time delay. For suitable sets…

等离子体物理 · 物理学 2007-05-23 F. Peano , R. A. Fonseca , J. L. Martins , L. O. Silva

The predominant reason for the damaging power of high-energy radiation is multiple ionization of a molecule, either direct or via the decay of highly excited intermediates, as e.g., in the case of X-ray irradiation. Consequently, the…

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…

原子物理 · 物理学 2009-11-13 S. Borbély , K. Tőkési , L. Nagy

The deexcitation of exotic hydrogen atoms in highly excited states in collisions with hydrogen molecules has been studied using the classical-trajectory Monte Carlo method. The Coulomb transitions with large change of principal quantum…

原子物理 · 物理学 2009-11-07 T. S. Jensen , V. E. Markushin

We study ionization of atoms in strong elliptically-polarized laser fields. We focus on the physical origin of the offset angle in the photoelectron momentum distribution and its possible relation to a specific time. By developing a model…

原子物理 · 物理学 2022-12-12 Y. G. Peng , J. Y. Che , C. Chen , G. G. Xin , Y. J. Chen

There are currently several proposals to build a high-luminosity electron-ion collider, to study the spin structure of matter and measure parton densities in heavy nuclei, and to search for gluon saturation and new phenomena like the…

加速器物理 · 物理学 2015-06-22 Spencer R. Klein

We review some simple mechanisms of breakup in nuclear reactions. We mention the spectator breakup, which is described in the post-form DWBA. The relation to other formulations is also indicated. An especially important mechanism is Coulomb…

核理论 · 物理学 2017-08-23 G. Baur , S. Typel , H. H. Wolter , K. Hencken , D. Trautmann