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We study the dynamics of Rydberg ions trapped in a linear Paul trap, and discuss the properties of ionic Rydberg states in the presence of the static and time-dependent electric fields constituting the trap. The interactions in a system of…

Quantum Physics · Physics 2009-11-13 M. Mueller , L. -M. Liang , I. Lesanovsky , P. Zoller

The interaction of a trapped ion with a laser beam in the strong excitation regime is analyzed. In this regime, a variety of non--classical states of motion can be prepared either by using laser pulses of well defined area, or by an…

Quantum Physics · Physics 2009-10-28 J. F. Poyatos , J. I. Cirac , R. Blatt , P. Zoller

We address the influence of the orbital symmetry and of the molecular alignment with respect to the laser-field polarization on laser-induced nonsequential double ionization of diatomic molecules, in the length and velocity gauges. We work…

Atomic Physics · Physics 2009-11-13 C. Figueira de Morisson Faria , T. Shaaran , X. Liu , W. Yang

So far, magneto-ionics, understood as voltage-driven ion transport in magnetic materials, has largely relied on controlled migration of oxygen ion/vacancy and, to a lesser extent, lithium and hydrogen. Here, we demonstrate efficient,…

During multi-photon ionization of an atom it is well understood how the involved photons transfer their energy to the ion and the photoelectron. However, the transfer of the photon linear momentum is still not fully understood. Here, we…

Atomic Physics · Physics 2020-02-19 Benjamin Willenberg , Jochen Maurer , Benedikt W. Mayer , Ursula Keller

We present a semiclassical two-step model for strong-field ionization that accounts for path interferences of tunnel-ionized electrons in the ionic potential beyond perturbation theory. Within the framework of a classical trajectory…

We investigate ion pairing dynamics in electrolytes driven far from equilibrium using molecular simulations and nonequilibrium rate theory. Focusing on 0.5 M $\mathrm{LiPF_6}$ in water and acetonitrile under uniform electric fields, we…

Chemical Physics · Physics 2026-02-12 Seokjin Moon , David T. Limmer

We investigate the role of nuclear motion and strong-field-induced electronic couplings during the double ionization of deuterated water using momentum-resolved coincidence spectroscopy. By examining the three-body dicationic dissociation…

Novel approaches to DNA sequencing and detection require the measurement of electrical currents between metal probes immersed in ionic solution. Here, we experimentally demonstrate that these systems maintain large background currents with…

We consider correlation-assisted tunnel ionization of a small molecule by an intense low-frequency laser pulse. In this mechanism, the departing electron excites the state of the ion via a Coulomb interaction. We show that the angular…

Atomic Physics · Physics 2014-04-25 Emilio Pisanty , Misha Ivanov

We show that dynamic exchange is a dominant effect in strong field ionization of molecules. In $CO_2$ it fixes the peak ionization yield at the experimentally observed angle of $45^\circ$ between polarization direction and the molecular…

Atomic Physics · Physics 2015-09-09 Vinay Pramod Majety , Armin Scrinzi

In recent years, several artificial molecular motors driven and controlled by electric currents have been proposed. Similar to Brownian machines, these systems work by turning random inelastic tunneling events into a directional rotation of…

Mesoscale and Nanoscale Physics · Physics 2022-10-31 Federico D. Ribetto , Sebastián E. Deghi , Hernán L. Calvo , Raúl A. Bustos-Marún

We construct an explicitly solvable Landau mean-field theory for volume phase transitions of confined or fixed ions driven by relative concentrations of divalent and monovalent counterions. Such phase transitions have been widely studied in…

Soft Condensed Matter · Physics 2011-02-17 Kyle J. Welch , Fred Gittes

A theoretical framework for studying strong-field ionization of aligned molecules is presented, and alignment-dependent ionization yields are computed for CO2. Our calculations are in unprecedented agreement with recent experiments. We find…

Atomic Physics · Physics 2009-06-17 M. Abu-samha , L. B. Madsen

The tunnel ionization of an electron bounded by two delta potentials under the influence of a constant electric field is considered. The equations for the electron current density for two different initial states are obtained. The…

Mesoscale and Nanoscale Physics · Physics 2016-10-12 P. A. Golovinski , A. A. Drobyshev

Matter under irradiation may enter unusual transient states, outside of its equilibrium phase diagram. One of such states is a superionic-like state, in which one sublattice of a compound liquifies, whereas another one remains solid. Here,…

Other Condensed Matter · Physics 2026-05-15 N. Medvedev , N. Nikishev , A. Artímez Peña

The ultrafast dynamics of ions in solids following intense femtosecond laser excitation is governed by two fundamentally distinct yet interplaying effects. On one hand, the significant generation of hot electron-hole pairs by the light…

Computational Physics · Physics 2024-01-22 Bernd Bauerhenne , Martin E. Garcia

We report Molecular Dynamics (MD) simulations of a generic hydrophobic nanopore connecting two reservoirs which are initially at different Na+ concentrations, as in a biological cell. The nanopore is impermeable to water under equilibrium…

Biological Physics · Physics 2009-11-10 J. Dzubiella , R. J. Allen , J. -P. Hansen

Travelling waves of neural firing activity are observed in brain tissue as a part of various sensory, motor and cognitive processes. They represent an object of major interest in the study of excitable networks, with analysis conducted in…

Neurons and Cognition · Quantitative Biology 2025-11-10 Henry D. J. Kerr , Peter Ashwin , Kyle C. A. Wedgwood

We consider the classical dynamics of a two-electron system subjected to an intense bichromatic linearly polarized laser pulse. By varying the parameters of the field, such as the phase lag and the relative amplitude between the two colors…

Chaotic Dynamics · Physics 2011-04-04 Adam Kamor , Francois Mauger , Cristel Chandre , Turgay Uzer