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We coincidently measure the molecular frame photoelectron angular distribution and the ion sum-momentum distribution of single and double ionization of CO molecules by using circularly and elliptically polarized femtosecond laser pulses,…

Atomic Physics · Physics 2015-06-04 J. Wu , L. Ph. H. Schmidt , M. Kunitski , M. Meckel , S. Voss , H. Sann , H. Kim , T. Jahnke , A. Czasch , R. Dörner

A general scenario for electronic charge migration in finite samples illuminated by an intense laser pulse is given. Microscopic calculations for neon clusters under strong short pulses as produced by X-ray free-electron laser sources…

Atomic and Molecular Clusters · Physics 2009-04-30 Christian Gnodtke , Ulf Saalmann , Jan M. Rost

We theoretically study dissociative ionization of H$_2^+$ exposed to strong linearly polarized few-cycle visible, near-infrared and midinfrared laser pulses. We find rich energy-sharing structures in the combined electron and nuclear…

Atomic Physics · Physics 2016-03-15 Lun Yue , Lars Bojer Madsen

We investigate interference and correlation effects when several detuned emitters are placed along a one-dimensional photonic waveguide. Such a setup allows multiple interactions between the photons and the strongly coupled emitters, and…

Quantum Physics · Physics 2017-07-24 Yao-Lung L. Fang , Harold U. Baranger

The transport properties of interacting electrons for which the spin degree of freedom is taken into account are numerically studied for small two dimensional diffusive clusters. On-site electron-electron interactions tend to delocalize the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Richard Berkovits , Jan W. Kantelhardt

Molecules show a much increased multiple ionization rate in a strong laser field as compared to atoms of similar ionization energy. A widely accepted model attributes this to the action of the joint fields of the adjacent ionic core and the…

Atomic Physics · Physics 2013-05-16 J. Wu , M. Meckel , L. Ph. H. Schmidt , M. Kunitski , S. Voss , H. Sann , H. Kim , T. Jahnke , A. Czasch , R. Dörner

We examine angular distribution of the probability of correlated fluorescence photon emission from a linear chain of identical equidistant two-level atoms. We selectively excite one of the atoms by a resonant laser field. The atoms are…

Quantum Physics · Physics 2018-12-19 Qurrat-ul-ain Gulfam , Zbignew Ficek

The Thomson backscattering of an electron moving in combined fields is studied by a dynamically assisted mechanism. The combined fields are composed of two co-propagating laser fields and a magnetic field, where the first laser field is…

Optics · Physics 2019-05-07 Zhijing Chen , Li Zhao , Chun Jiang , Haibo Sang , Bai-Song Xie

Energy spectra, spin configurations, and entanglement characteristics of a system of four electrons in lateral double quantum dots are investigated using exact diagonalization (EXD), as a function of interdot separation, applied magnetic…

Mesoscale and Nanoscale Physics · Physics 2009-02-12 Ying Li , Constantine Yannouleas , Uzi Landman

This paper presents a quantitative analysis of the impact of inelastic collisions of ultra-relativistic electrons and positrons, passing through oriented crystalline targets, on the channeling efficiency and on the intensity of the…

Accelerator Physics · Physics 2025-02-19 G. B. Sushko , A. V. Korol , A. V. Solov'yov

In strong-field ionization interferences between electron trajectories create a variety of interference structures in the final momentum distributions. Among them, the interferences between electron pathways that are driven directly to the…

In this chapter we analyze the multiple ionization by impact of |Z|=1 projectiles: electrons, positrons, protons and antiprotons. Differences and similarities among the cross sections by these four projectiles allows us to have an insight…

Atomic Physics · Physics 2017-09-14 C. C. Montanari

Born-Infeld nonlinear electrodynamics are considered. Main attention is given to existence of singular point at static field configuration that M.Born and L.Infeld are considered as a model of electron. It is shown that such singularities…

High Energy Physics - Theory · Physics 2011-07-19 Alexander A. Chernitskii

Using a classical ensemble method, nonsequential double ionization is predicted to exist with elliptical and circular polarization. Recollision is found to be the underlying mechanism and it is only possible via elliptical trajectories.

Atomic Physics · Physics 2015-03-13 Xu Wang , J. H. Eberly

The future linear collider will collide dense $e^+e^-$ bunches at high energies up to 1 TeV, generating very intense electromagnetic fields at the interaction point (IP). These fields are strong enough to lead to nonlinear effects which…

High Energy Physics - Phenomenology · Physics 2014-04-04 A. Hartin , S. Porto , G. Moortgat-Pick

We study the effect of laser driving on a minimal model for a hexagonal two-dimensional material with broken inversion symmetry. Through the application of circularly polarised light and coupling to a thermal free electron bath, the system…

Strongly Correlated Electrons · Physics 2019-09-04 Oliver Hart , Garry Goldstein , Claudio Chamon , Claudio Castelnovo

In an intense laser field, an electron may decay by emitting a pair of photons. The two photons emitted during the process, which can be interpreted as a laser-dressed double Compton scattering, remain entangled in a quantifiable way:…

Quantum Physics · Physics 2009-11-26 E. Lötstedt , U. D. Jentschura

The ionization of H2 in intense laser pulses is studied by numerical integration of the time-dependent Schr\"odinger equation for a single-active-electron model including the vibrational motion. The electron kinetic-energy spectra in…

Atomic Physics · Physics 2009-11-13 Stefan Pieper , Manfred Lein

In the recent work of Herath et al. [Phys. Rev. Lett. 109, 043004 (2012)] the first experimental observation of a dependence of strong-field ionization rate on the sign of the magnetic quantum number m (of the initial bound state (n,l.m))…

Atomic Physics · Physics 2015-06-23 J. H. Bauer , Francisca Mota-Furtado , Patrick F. O'Mahony , Bernard Piraux , K. Warda

Nonradiative energy dissipation in electronically excited polyatomic molecules proceeds through conical intersections, loci of degeneracy between electronic states. We observe a marked enhancement of laser-induced double ionization in the…