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Exposing a molecule to intense light pulses may bring this molecule to a nonstationary quantum state, thus launching correlated dynamics of electronic and nuclear subsystems. Although much had been achieved in the understanding of…

化学物理 · 物理学 2024-04-11 Nikolay V. Golubev , Jiří Vaníček

We investigate non-adiabatic electron pumping in graphene generated by laser irradiation with linear polarization parallel or perpendicular to the transport direction. Transport is dominated by the spatially asymmetric excitation of…

介观与纳米尺度物理 · 物理学 2012-10-12 Pablo San-Jose , Elsa Prada , Henning Schomerus , Sigmund Kohler

We show that if the laser is intense enough, it may always ionize an atom or induce transitions between discrete energy levels of the atom, no matter what is its frequency. It means in the quantum transition of an atom interacting with an…

量子物理 · 物理学 2007-05-23 Qi-Ren Zhang

We experimentally observe the action of multiple light pulses on the transverse motion of a continuous beam of fullerenes. The light potential is generated by non-resonant ultra-short laser pulses in perpendicular spatial overlap with the…

原子与分子团簇 · 物理学 2013-07-02 Paul Venn , Hendrik Ulbricht

We consider the effect of electron-electron interaction on the electron transport through a finite length single-mode quantum wire with reflectionless contacts. The two-particle scattering events cannot alter the electric current and…

介观与纳米尺度物理 · 物理学 2009-11-13 Anders Mathias Lunde , Karsten Flensberg , Leonid I. Glazman

Line scattering polarization can be strongly affected by Rayleigh scattering by neutral hydrogen and Thompson scattering by free electrons. Often a continuum depolarization results, but the Doppler redistribution produced by the continuum…

太阳与恒星天体物理 · 物理学 2015-06-18 T. del Pino Alemán , R. Manso Sainz , J. Trujillo Bueno

Electric field induced collective reorientation of nematic molecules placed between two flat parallel electrodes is of importance for both fundamental science and practical applications. This reorientation is either homogeneous over the…

We show that field-free molecular orientation induced by a half-cycle pulse may be considerably enhanced by an additional laser pulse inducing molecular anti-alignment. Two qualitatively different enhancement mechanisms are identified…

量子物理 · 物理学 2009-11-11 E. Gershnabel , I. Sh. Averbukh , R. J. Gordon

We present a quaternion-inspired formalism specifically developed to evaluate the electric current that traverses a single molecule subjected to an externally applied voltage. The molecule of interest is covalently connected to two small…

介观与纳米尺度物理 · 物理学 2014-08-06 Augusto C. L. Moreira , Celso P. de Melo

We study interaction of generic asymmetric molecules with a pair of strong time-delayed short laser pulses with crossed linear polarizations. We show that such an excitation not only provides unidirectional rotation of the most polarizable…

化学物理 · 物理学 2018-02-28 E. Gershnabel , I. Sh. Averbukh

Nanoscale molecular-electronic devices and machines are emerging as promising functional elements, naturally flexible and efficient, for next generation technologies. A deeper understanding of carrier dynamics in molecular junctions is…

介观与纳米尺度物理 · 物理学 2018-04-04 K. Beltako , F. Michelini , N. Cavassilas , L. Raymond

In this paper we study the non-relativistic dynamic of a charged particle in the electromagnetic field induced by a periodically time dependent current J along an infinitely long and infinitely thin straight wire. The motions are described…

数学物理 · 物理学 2022-07-27 Manuel Garzón , Stefano Marò

In this paper, we provide a rigorous quantum mechanical derivation for the coherent photon transport characteristics of a two-level atom coupled to a waveguide without linearizing the coupling coefficient between the light and the atom. We…

光学 · 物理学 2018-08-15 Fatih Dinç , İlke Ercan

We study coherent backscattering of a monochromatic laser by a dilute gas of cold two-level atoms in the weakly nonlinear regime. The nonlinear response of the atoms results in a modification of both the average field propagation (nonlinear…

量子物理 · 物理学 2009-11-11 Thomas Wellens , Benoit Gremaud , Dominique Delande , Christian Miniatura

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…

强关联电子 · 物理学 2019-09-04 Oliver Hart , Garry Goldstein , Claudio Chamon , Claudio Castelnovo

We provide a theory of the deflection of polar and non-polar rotating molecules by inhomogeneous static electric field. Rainbow-like features in the angular distribution of the scattered molecules are analyzed in detail. Furthermore, we…

化学物理 · 物理学 2015-05-20 E. Gershnabel , I. Sh. Averbukh

Excitation of molecules by incident incoherent electromagnetic radiation, such as sunlight, is described in detail and contrasted with the effect of coherent (e.g. laser) light. The nature of the quantum coherences induced by the former,…

量子物理 · 物理学 2022-02-23 Amro Dodin , Paul Brumer

We present a novel mechanism in which plasma electrons and ions optically acquire angular momentum during local pump depletion of an azimuthally polarized laser, despite the laser carrying none. Using theoretical considerations and…

等离子体物理 · 物理学 2026-03-04 Camilla Willim , Thales Silva , Luís Oliveira Silva , Jorge Vieira

Learning the electron scattering around atomic impurities is a fundamental step to fully understand the basic electronic transport properties of realistic conducting materials. Although many efforts have been made in this field for several…

介观与纳米尺度物理 · 物理学 2023-09-06 Yaowu Liu , Zichun Zhang , Sidan Chen , Shengnan Xu , Lichen Ji , Wei Chen , Xinyu Zhou , Jiaxin Luo , Xiaopen Hu , Wenhui Duan , Xi Chen , Qi-Kun Xue , Shuai-Hua Ji

Molecular conduction operating in dielectric solvent environments are often described using kinetic rates based on Marcus theory of electron transfer at a molecule-metal electrode interface. However, the successive nature of charge transfer…

化学物理 · 物理学 2020-02-18 Henning Kirchberg , Michael Thorwart , Abraham Nitzan