Classical study of the rovibrational dynamics of a polar diatomic molecule in static electric fields

Iñarrea, Manuel; Salas, J. Pablo; González‐Férez, Rosario; Schmelcher, Peter

doi:10.1016/j.physleta.2009.11.015

Cited by 9 publications

(4 citation statements)

References 45 publications

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“…The main difference comes from the presence of the quantum confinement. For polar molecules, the electric field is an effective tool to tailor the rotational properties [23][24][25][26][27]. The altered rotational states dominate the behavior of entanglement via a kind of correlation between polar molecules.…”

Section: Discussionmentioning

confidence: 99%

Anticrossing-mediated entanglement of adsorbed polar molecules

Liao

2012

Phys. Rev. A

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We study the entanglement of two adsorbed polar molecules in static electric fields. The concurrence is estimated to quantify the entanglement. The adsorbed molecules reveal significant rotational characteristics, such as anticrossing features, due to the influences of electric field and quantum confinement. Numerical results demonstrate that these rotational properties dominate the amount and profile of concurrence. At zero temperature, an enhanced concurrence is obtained near the anticrossing in the ground state. Moreover, we analyze the effect of temperature on the concurrence. The temperature-dependent concurrence displays a suppressed behavior, especially at the anticrossing.

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Section: Discussionmentioning

confidence: 99%

Anticrossing-mediated entanglement of adsorbed polar molecules

Liao

2012

Phys. Rev. A

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“…We notice that for a reasonable range of values of P θ the dynamics resembles the one of a forced pendulum with rotational and librational trajectories, and a "rotational" chaotic zone around the hyperbolic point at θ = π/2 [31]. We use the term "rotational" chaotic zone to indicate the chaotic trajectories spanning the whole interval [0, π] for the angle θ.…”

Section: B Dynamics During the Plateaumentioning

confidence: 97%

“…Some examples of such as studies can be found in Refs. [23][24][25][26][27][28][29][30][31][32][33]. Furthermore, classical studies in microscopic systems have revealed themselves as a power tool to understand quantum mechanical results in many cases (see e.g.…”

Section: Introductionmentioning

confidence: 99%

Driving the formation of the RbCs dimer by a laser pulse: A nonlinear-dynamics approach

2017

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We study the formation of the RbCs molecule by an intense laser pulse using nonlinear dynamics.Under the Born-Oppenheimer approximation, the system is modeled by a two degree of freedom rovibrational Hamiltonian, which includes the ground electronic potential energy curve of the diatomic molecule and the interaction of the molecular polarizability with the electric field of the laser. As the laser intensity increases, we observe that the formation probability first increases and then decreases after reaching a maximum. We show that the analysis can be simplified to the investigation of the long-range interaction between the two atoms. We conclude that the formation is due to a very small change in the radial momentum of the dimer induced by the laser pulse.From this observation, we build a reduced one dimensional model which allows us to derive an approximate expression of the formation probability as a function of the laser intensity.

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“…For example, the response of atomic and molecular systems to diverse external field configurations has been widely studied by using classical dynamics (see, e.g., Refs. [2,[18][19][20][21][22][23][24][25][26][27]). In many cases, those classical approaches were unrivaled to provide an intuitive explanation of the quantum mechanical results (see, e.g., Refs.…”

Section: Introductionmentioning

confidence: 99%

Formation of RbCs dimers using an elliptically polarized laser pulse

Chandre

Salas

2019

Phys. Rev. A

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We consider the formation of RbCs by an elliptically polarized laser pulse. By varying the ellipticity of the laser for sufficiently large laser intensity, we see that the formation probability presents a strong dependence, especially around ellipticity 1/ √ 2. We show that the analysis can be reduced to the investigation of the long-range interaction between the two atoms. The formation is mainly due to a small momentum shifts induced by the laser pulse. We analyze these results using the Silberstein's expressions of the polarizabilities, and show that the ellipticity of the field acts as a control knob for the formation probability, allowing significant variations of the dimer formation probability at a fixed laser intensity, especially in the region around an ellipticity of 1/ √ 2.

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Classical study of the rovibrational dynamics of a polar diatomic molecule in static electric fields

Cited by 9 publications

References 45 publications

Anticrossing-mediated entanglement of adsorbed polar molecules

Anticrossing-mediated entanglement of adsorbed polar molecules

Driving the formation of the RbCs dimer by a laser pulse: A nonlinear-dynamics approach

Formation of RbCs dimers using an elliptically polarized laser pulse

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