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The paper proposes the method to analyze the internal dynamics of nanoscopic systems by periodic modulation of the electrochemical potentials of the attached leads and measuring the time-averaged current. The idea is presented using the…

Mesoscale and Nanoscale Physics · Physics 2017-11-15 Krzysztof Ptaszynski

The bound and resonance states along with corresponding autoionization widths for nitrogen sulphide (NS) molecule are determined using electron NS$^+$ cation scattering calculations. The calculations are performed for $^2{\Sigma}^+$,…

Instrumentation and Methods for Astrophysics · Physics 2024-05-01 F. Iacob , T. Meltzer , J. Zs. Mezei , I. F. Schneider , J. Tennyson

We consider the final stage of triple ionization of atoms in a strong linearly polarized laser field. We propose that for intensities below the saturation value for triple ionization the process is dominated by the simultaneous escape of…

Quantum Physics · Physics 2009-11-07 Krzysztof Sacha , Bruno Eckhardt

The deuteration mechanism of molecules in the interstellar medium (ISM) is still being debated. Observations of deuterium-bearing species in several astronomical sources represent a powerful tool to improve our understanding of the…

Astrophysics of Galaxies · Physics 2017-12-04 Mattia Melosso , Claudio Degli Esposti , Luca Dore

Inducing and controlling the ultrafast molecular rotational dynamics using shaped laser fields is essential in numerous applications. Several approaches exist that allow following the coherent molecular motion in real-time, including…

Aqueous solutions are crucial in chemistry, biology, environmental science, and technology. The chemistry of solutes is influenced by the surrounding solvation shell of water molecules, which have different chemical properties than bulk…

A numerically solvable two-dimensional (2D) model, employed by the authors to study the dissociative recombination of H$_2^+$ in the ungerade symmetry [Phys. Rev. A $\mathbf{98}$, 062706 (2018)], is extended to describe the collision…

Chemical Physics · Physics 2025-11-26 Dávid Hvizdoš , Roman Čurík , Chris H. Greene

We perform axisymmetric (2D) multi-angle, multi-group neutrino radiation-hydrodynamic calculations of the postbounce phase of core-collapse supernovae using a genuinely 2D discrete-ordinate (S_n) method. We follow the long-term postbounce…

Astrophysics · Physics 2010-11-11 Christian D. Ott , Adam Burrows , Luc Dessart , Eli Livne

Obtaining a detailed understanding of strong-field double ionisation of many-electron systems (heavy atoms and molecules) remains a challenging task. By comparing experimental and theoretical results in the mid-IR regime, we have…

We present an algebraic method for treating molecular vibrations in the Morse potential perturbed by an external laser field. By the help of a complete and normalizable basis we transform the Schr\"{o}dinger equation into a system of…

Quantum Physics · Physics 2009-11-07 Balazs Molnar , Peter Foldi , Mihaly G. Benedict , Ferenc Bartha

Double ionization (DI) is a fundamental process that despite its apparent simplicity provides rich opportunities for probing and controlling the electronic motion. Even for the simplest multielectron atom, helium, new DI mechanisms are…

Atomic Physics · Physics 2021-10-12 Henrik R. Larsson , David J. Tannor

We present a NMR pulse double-irradiation method which allows one to separate magnetic from quadrupolar contributions in the spin-lattice relaxation. The pulse sequence fully saturates one transition while another is observed. In the…

Materials Science · Physics 2009-10-31 A. Suter , M. Mali , J. Ross , D. Brinkmann

Pure, highly nuclear-spin-polarized molecules have only been produced with molecular beam-separation methods, with production rates up to ${\sim}3{\times}10^{12}$ s$^{-1}$. Here, we propose the production of spin-polarized molecular…

Chemical Physics · Physics 2021-11-24 C. S. Kannis , T. P. Rakitzis

We examine the nature and statistical properties of electron-electron collisions in the recollision process in a strong laser field. The separation of the double ionization yield into sequential and nonsequential components leads to a…

Atomic Physics · Physics 2015-05-14 Francois Mauger , Cristel Chandre , Turgay Uzer

The alignment- and internuclear-distance dependent ionization of H$_2$ exposed to intense, ultrashort laser fields is studied by solving the time-dependent two-electron Schr\"odinger equation. In the regime of perturbative few-photon…

Atomic Physics · Physics 2015-06-23 Johann Förster , Yulian V. Vanne , Alejandro Saenz

The pump-probe experiments enabled by X-ray free-electron lasers (XFEL) will allow us to directly observe correlated electronic motion with attosecond time resolution by detecting photoelectron pairs in coincidence. In helium, the…

We study by computer simulations the coupled rotational and translational dynamics of three important linear diatomic molecules, namely, carbon monoxide (CO), nitric oxide (NO) and cyanide ion (CN-) in water. Translational diffusion of…

Soft Condensed Matter · Physics 2019-01-28 Anjali S Nair , Puja Banerjee , Sarmistha Sarkar , Biman Bagchi

N$_2^+$ air lasing has attracted considerable attention due to its promising applications in remote sensing and the debates surrounding its generation mechanisms. Here, we present a comprehensive theoretical investigation of the role of…

Optics · Physics 2025-04-28 Wenli Yang , Ping Li , Luzhen Yang , Jianfeng Guo , Pengji Ding , Shan Xue , Hongchuan Du

The kinetic energy distribution of D$^+$ ions resulting from the interaction of a femtosecond laser pulse with D$_2$ molecules is calculated based on the rescattering model. From analyzing the molecular dynamics, it is shown that the…

Atomic Physics · Physics 2009-11-10 X. M. Tong , Z. X. Zhao , C. D. Lin

An axisymmetric fully ionized plasma rotates around its axis when a charge separation between magnetic surfaces is produced from DC fields or RF waves. On each magnetic surface both electrons and ions obey the isorotation law and perform an…

Plasma Physics · Physics 2019-01-30 J. M. Rax , E. J. Kolmes , I. E. Ochs , N. J. Fisch , R. Gueroult