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We investigate electron correlation effects in internuclear-distance-dependent enhanced ionization of $\mathrm{H}_2$, $\mathrm{LiH}$, and $\mathrm{HF}$ molecules by intense near-infrared laser pulses using a 3D description of the systems…

Atomic Physics · Physics 2019-02-27 Siddhartha Chattopadhyay , Lars Bojer Madsen

The discovery of two-dimensional (2D) ferroelectrics with switchable out-of-plane polarization such as monolayer $\alpha$-In$_2$Se$_3$ offers a new avenue for ultrathin high-density ferroelectric-based nanoelectronics such as ferroelectric…

Materials Science · Physics 2021-12-01 Jing Wu , Liyi Bai , Jiawei Huang , Liyang Ma , Jian Liu , Shi Liu

Absolute cross sections for electron-impact single ionisation (EISI) of multiply charged tungsten ions (W$^{q+}$) with charge states in the range $ 11 \leq q \leq 18$ in the electron-ion collision energy ranges from below the respective…

Atomic Physics · Physics 2020-01-08 D. Schury , A. Borovik, , B. Ebinger , F. Jin , K. Spruck , A. Müller , S. Schippers

Wave-particle duality is an inherent peculiarity of the quantum world. The double-slit experiment has been frequently used for understanding different aspects of this fundamental concept. The occurrence of interference rests on the lack of…

We extend the semiclassical two-step model [Phys. Rev. A 94, 013415 (2016)] to include a multielectron polarization-induced dipole potential. Using this model we investigate the imprints of multielectron effects in the momentum…

Atomic Physics · Physics 2018-08-22 N. I. Shvetsov-Shilovski , M. Lein , L. B. Madsen

Owing to its numerical simplicity, a two-dimensional two-electron model atom, with each electron moving in one direction, is an ideal system to study non-perturbatively a fully correlated atom exposed to a laser field. Frequently made…

Atomic Physics · Physics 2009-10-30 D. Bauer

Longitudinal momentum spectra and electron drift directions are considered for several laser wavelengths in Non-Sequential Double Ionization of helium using three dimensional classical ensembles. In this model, the familiar doublet for…

Atomic Physics · Physics 2015-05-13 S. L. Haan , Z. S. Smith , K. N. Shomsky , P. W. Plantinga

Capacitive deionization (CDI) is a fast-emerging water desalination technology in which a small cell voltage of ~1 V across porous carbon electrodes removes salt from feedwaters via electrosorption. In flow-through electrode (FTE) CDI cell…

Computational Engineering, Finance, and Science · Computer Science 2017-02-01 Eric N. Guyes , Amit N. Shocron , Anastasia Simanovski , P. M. Biesheuvel , Matthew E. Suss

We analyze two-center interference effects in the yields of ionization of a dissociating hydrogen molecular ion by an ultrashort VUV laser pulse. To this end, we performed numerical simulations of the time-dependent Schr\"odinger equation…

Quantum Physics · Physics 2015-05-27 A. Picón , A. Bahabad , H. C. Kapteyn , M. M. Murnane , A. Becker

Here we investigate a limiting case of the theory for aggregation and gelation in the electrical double layer (EDL) of ionic liquids (ILs). The limiting case investigated only accounts for ion pairs, ignoring the possibility of larger…

Soft Condensed Matter · Physics 2022-09-09 Zachary A. H. Goodwin , Alexei A. Kornyshev

We study double ionization (DI) dynamics of vibrating HeH$^+$ versus its isotopic variant HeT$^+$ in strong laser fields numerically. Our simulations show that for both cases, these two electrons in DI prefer to release together along the…

Atomic Physics · Physics 2020-03-18 S. Wang , R. H. Xu , W. Y. Li , X. Liu , W. Li , G. G. Xin , Y. J. Chen

We present a momentum-resolved study of strong field multiple ionization of ionic targets. Using a deconvolution method we are able to reconstruct the electron momenta from the ion momentum distributions after multiple ionization up to four…

Atomic Physics · Physics 2015-06-23 P. Wustelt , M. Möller , T. Rathje , A. M. Sayler , T. Stöhlker , G. G. Paulus

This study explores the excitation and ionization of an atomic beam as a pathway to optimize focused ion beams (FIBs) for high-precision applications. Leveraging the unique advantages of Rydberg excitation followed by field ionization --…

Energetic charged particles generated by inertial confinement fusion (ICF) implosions encode information about the spatial morphology of the hot-spot and dense fuel during the time of peak fusion reactions. The knock-on deuteron imager…

Based on the frequency-domain theory, we investigate the above-threshold ionization (ATI) process of an atom in a two-color laser field with infrared (IR) and extreme ultraviolet (XUV) frequencies, where the photon energy of the XUV laser…

Atomic Physics · Physics 2015-06-16 Kui Zhang , Jing Chen , Panming Fu , Zong-Chao Yan , Bingbing Wang

The energy splitings for $J = 1$, $F=3/2$, $|M_F|=3/2$ hyperfine levels of the $^3\Delta_1$ electronic state of $^{180}$Hf$^{19}$F$^+$ ion are calculated as functions of the external variable electric and magnetic fields within two…

Atomic Physics · Physics 2018-05-16 A. N. Petrov

For the description of nonsequential double ionization (NSDI) of rare-gas atoms by a strong linearly polarized laser field, the quantum-mechanical $S$-matrix diagram that incorporates rescattering impact ionization is evaluated in the…

Atomic Physics · Physics 2007-05-23 C. Figueira de Morisson Faria , X. Liu , H. Schomerus , W. Becker

Spin tunneling in molecular magnets controlled by dipole-dipole interactions (DDI) in the disordered state has been considered numerically on the basis of the microscopic model using the quantum mean-field approximation. In the actual case…

Statistical Mechanics · Physics 2014-01-07 D. A. Garanin

The multiphoton ionization and photoelectron spectra of magnesium were studied at laser intensities of up to 6x10^{13} Wcm^{-2} using 150 fs laser pulses of a wavelength of 400 nm. The results indicated that a variety of different…

Atomic Physics · Physics 2009-10-31 D. Xenakis , N. E. Karapanagioti , D. Charalambidis , H. Bachau , E. Cormier

Trapped ions have emerged as a front runner in quantum information processing due to their identical nature, all-to-all connectivity, and high fidelity quantum operations. As current trapped ion technologies are scaled, it will be important…

Quantum Physics · Physics 2023-07-18 Noah Greenberg , Brendan M. White , Pei Jiang Low , Crystal Senko