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The standard closed-orbit theory is extended for the photodetachment of negative ions in a time-dependent electric field. The time-dependent photodetachment rate is specifically studied in the presence of a single-cycle terahertz pulse,…

Atomic Physics · Physics 2016-05-25 B. C. Yang , F. Robicheaux

The charge carrier localization length {\alpha} is a crucial, yet often ignored parameter of conjugated polymers that exponentially influences electronic conductivity. Here, we argue it is a unique proxy of the energy landscape as…

Disordered Systems and Neural Networks · Physics 2025-11-18 Morteza Shokrani , Felix Maximilian Graf , Anton Kompatscher , Dennis Derewjanko , Martijn Kemerink

We present a thorough analysis of the electronic detection of charged particles, confined in a Penning trap, via image charges induced in the trap electrodes. Trapping of charged particles in an electrode structure leads to frequency…

Atomic Physics · Physics 2009-11-13 D. F. A. Winters , M. Vogel , D. M. Segal , R. C. Thompson

We theoretically investigate the laser wavelength dependence of asymmetric dissociation of H$_2^+$. It is found that the electron localization in molecular dissociation is significantly manipulated by varying the wavelength of the driving…

Atomic and Molecular Clusters · Physics 2015-06-03 Kunlong Liu , Weiyi Hong , Qingbin Zhang , Peixiang Lu

We report the observation of quantized translational and rotational motion of molecular hydrogen inside the cages of C60. Narrow infrared absorption lines at the temperature of 6K correspond to vibrational excitations in combination with…

The high field charge injection and transport properties in reinforced silicone dielectrics were investigated by measuring the time-dependent space charge distribution and the current under dc conditions up to the breakdown field, and were…

Materials Science · Physics 2016-08-04 Yanhui Huang , Linda. S. Schadler

Photoionization as a half-scattering process is not instantaneous. Usually, time delays in photoionization are of the order of few tens of attoseconds (1 as = 10$^{-18}$ s). While going from a single atom to a nano-object, one can expect…

We investigate the attosecond response of the electronic cloud of a molecular system to an outer-valence ionization. The time needed for the remaining electrons to respond to a sudden perturbation in the electronic structure of the molecule…

Chemical Physics · Physics 2022-06-22 K. Chordiya , V. Despré , M. U. Kahaly , A. I. Kuleff

The evolution of the electron spin dynamics as consequence of carrier delocalization in $n$-type GaAs is investigated by the recently developed extended pump-probe Kerr/Faraday rotation spectroscopy. We find that isolated electrons…

Mesoscale and Nanoscale Physics · Physics 2017-12-11 V. V. Belykh , K. V. Kavokin , D. R. Yakovlev , M. Bayer

Electrons floating on the surface of liquid helium are possible spin-qubits for quantum information processing. Varying electric potentials are not expected to modify spin states, which allows their transport on helium using a…

Other Condensed Matter · Physics 2009-11-13 G. Sabouret , F. R. Bradbury , S. Shankar , S. A. Lyon

The interaction between molecular (atomic) electron(s) and the vacuum field of a reflective cavity generates a significant interest thanks to the rapid developments in nanophotonics. Such interaction which lies within the realm of cavity…

Chemical Physics · Physics 2019-05-22 Alexander Semenov , Abraham Nitzan

The cage effect is generally invoked when discussing the delay in the decay of time correlation functions of dense fluids. In an attempt to examine the role of caging more closely we consider the spread of the displacement distributions of…

Soft Condensed Matter · Physics 2017-04-05 W. van Megen , H. J. Schöpe

We study theoretically the possibilities of coupling the quantum mechanical motion of a trapped charged particle (e.g. ion or electron) to quantum degrees of freedom of superconducting devices, nano-mechanical resonators and quartz bulk…

Quantum Physics · Physics 2017-03-01 Shlomi Kotler , Raymond W. Simmonds , Dietrich Leibfried , David J. Wineland

Dynamically rich nature of the high-order harmonic generation process lends itself to a variety of ways to increase photon yield and extend the harmonic cut-off frequency. We show here that high-harmonic generation from an atom confined…

Atomic Physics · Physics 2019-12-25 T. Topcu , E. A. Bleda , Z. Altun

In this Letter, we investigate the time delay of photoelectrons by fullerenes shell in endohedrals. We present general formulas in the frame of the random phase approximation with exchange (RPAE) applied to endohedrals A@CN that consist of…

Atomic and Molecular Clusters · Physics 2020-10-28 M. Ya. Amusia , L. V. Chernysheva

Combined first-principles and experimental investigations reveal the underlying mechanism responsible for a drastic change of the conductivity (by 10 orders of magnitude) following hydrogen annealing and UV-irradiation in a transparent…

Materials Science · Physics 2009-11-10 J. E. Medvedeva , A. J. Freeman , M. I. Bertoni , T. O. Mason

We demonstrate the trapping of electrons propagating ballistically at far-above-equilibrium energies in GaAs/AlGaAs heterostructures in high magnetic field. We find low-loss transport along a gate-modified mesa edge in contrast to an…

Mesoscale and Nanoscale Physics · Physics 2020-03-30 L. Freise , T. Gerster , D. Reifert , T. Weimann , K. Pierz , F. Hohls , N. Ubbelohde

We discuss the temporal picture of electron collisions with fullerene. Within the framework of a Dirac bubble potential model for the fullerene shell, we calculate the time delay in slow-electron elastic scattering by it. It appeared that…

Atomic and Molecular Clusters · Physics 2019-06-18 M. Ya. Amusia , A. S. Baltenkov

Intermolecular charge transfer reactions are key processes in physical chemistry. The electron-transfer rates depend on a few system's parameters, such as temperature, electromagnetic field, distance between adsorbates and, especially, the…

New experiments were proposed recently to investigate the regime of cold atomic and molecular ion-atom collision processes in a special hybrid neutral-atom--ion trap under high vacuum conditions. The collisional cooling of laser pre-cooled…

Atomic Physics · Physics 2009-11-07 Oleg P. Makarov , R. Côté , H. Michels , W. W. Smith
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