Strong-field coherent control of the proton momentum distribution arising from the n-photon (n=1,2,3) field-dressed adiabatic potentials of H2+

Daud, Mohammad Noh (2023) Strong-field coherent control of the proton momentum distribution arising from the n-photon (n=1,2,3) field-dressed adiabatic potentials of H2+. International Journal of Quantum Chemistry. ISSN 0020-7608, DOI https://doi.org/10.1002/qua.27228.

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Abstract

A systematic directionality coherent control of total proton momentum distributions in the dissociative-ionization of H-2(+) subjected to a strong field of six-cycle laser pulses in a full range of carrier-envelope phase theta is studied by solving a non-Born-Oppenheimer time-dependent Schrodinger equation numerically. The trend of distributions involves insightful investigation into the spatial-temporal overlap between nuclear wave packets evolving on the coupled field-dressed electronic potentials of H-2(+) associated with the n-photon potential crossings. This leads to new quantum images for the nonlinear nonperturbative interaction of H-2(+) with a strong field. It turns out that the symmetry of the theta-dependent momentum distribution begins to break after undergoing interaction with one-photon field-dressed potentials. At this point, the most probable proton momentum distribution tends to move in a forward direction indicating also that the three-photon field-dressed potentials strongly gov-ern the dissociative-ionization pathway.

Item Type: Article
Funders: Universiti Malaya
Uncontrolled Keywords: adiabatic potential; coherent control; laser pulse; proton; Schrodinger equation; strong field
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Aug 2025 02:21
Last Modified: 28 Aug 2025 02:21
URI: http://eprints.um.edu.my/id/eprint/50670

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