A multidimensional Landau--Zener desription of chemical reaction dynamics and vibrational coherence

Leyun Zhu; Widom, Allan; Champion, Paul M.
August 1997
Journal of Chemical Physics;8/22/1997, Vol. 107 Issue 8, p2859
Academic Journal
Discusses coherent nuclear oscillations in chemical and biological systems subsequent to excitation with an ultrashort laser pulse. Coherent signals arising from rapid, photon initiated, chemical reactions; Vibrational coherences directly excited by the electric field interventions of the light pulse; Development of a modified Landau-Zener theory.


Related Articles

  • Excitation mechanisms and gain modeling of the high-pressure atomic Ar laser in He/Ar mixtures. Shon, Jong W.; Kushner, Mark J. // Journal of Applied Physics;2/15/1994, Vol. 75 Issue 4, p1883 

    Presents a study that developed a computer model to investigate excitation mechanisms of the argon laser. Oscillation of the argon laser; Use of electron beam in obtaining oscillation; Dissociative recombination of argon.

  • Nonlinear theory of a plasma microwave oscillator using cable waves. Birau, M.; Krasil’nikov, M. A.; Kuzelev, M. V.; Rukhadze, A. A. // Journal of Experimental & Theoretical Physics;Apr97, Vol. 84 Issue 4, p694 

    The nonstationary problem of excitation of a plasma microwave oscillator of a finite length driven by a pulsed relativistic beam is analyzed. Both analytic and numerical techniques have been used in studying the oscillator dynamics at given beam parameters (configuration, electron energy, and...

  • On the concept of temperature for a small isolated system. Andersen, J. U.; Bonderup, E.; Hansen, K. // Journal of Chemical Physics;4/15/2001, Vol. 114 Issue 15 

    The microcanonical temperature is shown to be a useful concept in calculations of the decay of a small isolated system with well defined energy. A simpler and more transparent description is obtained than in Klots' formulation of finite-heat-bath theory, where the system is represented by a...

  • Oscillations of Few Particle Vertical Structures. Prior, N. J.; Mitchell, L. W.; Samarian, A. A. // AIP Conference Proceedings;2002, Vol. 649 Issue 1, p398 

    Experiments on the excitation of vertically aligned particle resonances are presented. A two particle string was driven vertically and horizontally by electrostatically and laser driven oscillations through a range of frequencies. The laser excitation technique allows us to drive one particle...

  • Resonant excitation of tilt mode in tidally deformed disks. Kato, Shoji // Publications of the Astronomical Society of Japan;Apr2014, Vol. 66 Issue 1, p1 

    In a previous paper (Kato 2013, PASJ, 65, 75), we have shown that in deformed disks a pair of trapped oscillation modes can be resonantly excited through couplings with disk deformation. In this paper we examine in what cases tilts are excited on tidally deformed disks by the above-mentioned...

  • Modelling the widths of fission observables in GEF. Jurado, B.; Schmidt, K.-H. // EPJ Web of Conferences;2013, Issue 42, p06005-p.1 

    The widths of the mass distributions of the different fission channels are traced back to the probability distributions of the corresponding quantum oscillators that are coupled to the heat bath, which is formed by the intrinsic degrees of freedom of the fissioning system under the influence of...

  • Nature of the lowest excited states of neutral polyenyl radicals and polyene radical cations. Starcke, Jan Hendrik; Wormit, Michael; Dreuw, Andreas // Journal of Chemical Physics;10/14/2009, Vol. 131 Issue 14, p144311 

    Due to the close relation of the polyenyl radicals C2n+1H2n+3• and polyene radical cations C2nH2n+2•+ to the neutral linear polyenes, one may suspect their excited states to possess substantial double excitation character, similar to the famous S1 state of neutral polyenes and thus...

  • Integrated cantilever sensors with a torsional resonance mode for ultraresoluble on-the-spot bio/chemical detection. Jin, Dazhong; Li, Xinxin; Bao, Hanhan; Zhang, Zhixiang; Wang, Yuelin; Yu, Haitao; Zuo, Guomin // Applied Physics Letters;1/22/2007, Vol. 90 Issue 4, p041901 

    Torsion-mode resonance is built in an integrated cantilever sensor for ultraresoluble detection of specifically bio/chemical mass adsorption. The superior mass resolution of the torsion-mode cantilever to a conventional bending-mode one is verified by energy-dissipation analysis and Q-factor...

  • Hall magnetoresistivity response under microwave excitation revisited. Iñarrea, Jesús // Applied Physics Letters;4/23/2007, Vol. 90 Issue 17, p172118 

    The authors theoretically analyzed the microwave-induced modification of the Hall magnetoresistivity in high mobility two-dimensional electron systems. These systems present diagonal magnetoresistivity oscillations and zero-resistance states when subjected to microwave radiation. The most...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics