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We investigate the dynamics of diatomic molecules subjected to both a femtosecond mid-infrared laser pulse and Gaussian white noise. The stochastic Schr\"odinger equation with a Morse potential is used to describe the molecular vibrations…

Quantum Physics · Physics 2009-11-13 Kamal P. Singh , Anatole Kenfack , Jan M. Rost

We study the dissociation dynamics of a diatomic molecule, modeled as a Morse oscillator, coupled to an optical cavity. In both classical and quantum dynamics simulations, a marked suppression of the dissociation probability is observed for…

Chemical Physics · Physics 2023-01-11 Subhadip Mondal , Derek S. Wang , Srihari Keshavamurthy

We present a general mathematical procedure to handle interactions described by a Morse potential in the presence of a strong harmonic excitation. We account for permanent and field-induced terms and their gradients in the dipole moment…

Atomic Physics · Physics 2023-07-19 Sándor Varró , Szabolcs Hack , Gábor Paragi , Péter Földi , Imre F. Barna , Attila Czirják

The dissociation dynamics of diatomic molecules interacting with (near) optical laser pulses of different duration is investigated by an elaborate discussion of the electric field of the laser and by a direct solution of the time-dependent…

Atomic Physics · Physics 2019-08-14 T. Fiedlschuster , J. Handt , E. K. U. Gross , R. Schmidt

The analytic solutions of the spatially-dependent mass Schrodinger equation of diatomic molecules with the centrifugal term l(l+1)/r2 for the generalized q-deformed Morse potential are obtained approximately by means of a parametric…

Quantum Physics · Physics 2015-05-13 Sameer Ikhdair

Light-induced conical intersections (LICIs) can be formed both by standing or by running laser waves. The position of a LICI is determined by the laser frequency while the laser intensity controls the strength of the nonadiabatic coupling.…

Atomic and Molecular Clusters · Physics 2016-07-11 András Csehi , Gábor J. Halász , Lorenz S. Cederbaum , Ágnes Vibók

Exact solutions for vibrational levels of diatomic molecules via the Morse potential are obtained by means of the asymptotic iteration method. It is shown that, the numerical results for the energy eigenvalues of $^{7}Li_{2}$ are all in…

Quantum Physics · Physics 2009-11-13 T. Barakat , K. Abodayeh

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 study a general problem of the translational/rotational/vibrational/electronic dynamics of a diatomic molecule exposed to an interaction with an arbitrary external electromagnetic field. The theory developed in this paper is relevant to…

Quantum Physics · Physics 2016-09-28 Milan Sindelka , Nimrod Moiseyev

The dissociation spectrum of the hydrogen molecular ion by short intense pulses of infrared light is calculated. The time-dependent Schr\"odinger equation is discretized and integrated in position and momentum space. For few-cycle pulses…

Atomic Physics · Physics 2009-11-10 Liang-You Peng , I D Williams , J F McCann

We study the effect of the nuclear-mass ratio in a diatomic molecular ion on the dissociation dynamics in strong infrared laser pulses. A molecular ion is a charged system, in which the dipole moment depends on the reference point and…

Atomic Physics · Physics 2023-05-17 Florian Oppermann , Saurabh Mhatre , Stefanie Gräfe , Manfred Lein

We study the breakup of $\text{H}_2^+$ exposed to super-intense, femtosecond laser pulses with frequencies greater than that corresponding to the ionization potential. By solving the time-dependent Schr\"odinger equation in an extensive…

Atomic Physics · Physics 2016-04-12 Lun Yue , Lars Bojer Madsen

A model based on the strong-field and Born-Oppenheimer approximations qualitatively describes the distribution over vibrational states formed in a diatomic molecular ion following ionization of the neutral molecule by intense laser pulses.…

Atomic Physics · Physics 2007-05-23 Thomas Kim Kjeldsen , Lars Bojer Madsen

We evaluate the shifts imparted to vibrational and rotational levels of a linear molecule by a nonresonant laser field at intensities of up to 10^12 W/cm^2. Both types of shift are found to be either positive or negative, depending on the…

Chemical Physics · Physics 2015-03-14 Mikhail Lemeshko , Bretislav Friedrich

We present calculations for the action of laser pulses on vibrational transfer within the H2+ and Na2 molecules in the presence of dissipation due to photodissociation of the molecule. The laser fields perform closed loops surrounding…

Quantum Physics · Physics 2013-06-28 Arnaud Leclerc , Georges Jolicard , John P. Killingbeck

Non Born-Oppenheimer quantum dynamics of H$_{2}^{+}$ excited by shaped one-cycle laser pulses linearly polarized along the molecular axis have been studied by the numerical solution of the time-dependent Schr\"odinger equation within a…

Atomic and Molecular Clusters · Physics 2017-08-02 Guennaddi K. Paramonov , Oliver Kühn , Andre D. Bandrauk

Shaped laser pulses are a powerful tool to induce population transfer between electronic molecular states, and time-dependent perturbation theory is suitable for a description of such a transfer in weak external fields. The application of…

Mathematical Physics · Physics 2012-05-24 Klaus Renziehausen

A theoretical investigation of the dissociative excitation by electron impact on the NO molecule is presented, aiming to make up for the lack of data for this process in the literature. A full set of vibrationally-resolved cross sections…

Atomic Physics · Physics 2020-05-22 V. Laporta , J. Tennyson , I. F. Schneider

We discuss a strongly entangled two-particle state of motion that emerges naturally from the double-pulse dissociation of a diatomic molecule. This state, which may be called dissociation-time entangled, permits the unambiguous…

Quantum Physics · Physics 2009-05-14 Clemens Gneiting , Klaus Hornberger

We present a theoretical study of the mixed-field-orientation of asymmetric top molecules in tilted static electric field and non-resonant linearly polarized laser pulse by solving the time-dependent Schr\"odinger equation. Within this…

Chemical Physics · Physics 2016-12-21 Juan J. Omiste , Rosario González-Férez
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