Please use this identifier to cite or link to this item: https://gnanaganga.inflibnet.ac.in:8443/jspui/handle/123456789/2022
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dc.contributor.authorDatta, Sumita-
dc.date.accessioned2023-11-09T09:11:06Z-
dc.date.available2023-11-09T09:11:06Z-
dc.date.issued2023-02-28-
dc.identifier.urihttps://doi.org/10.48550/arXiv.2302.13628-
dc.identifier.urihttp://gnanaganga.inflibnet.ac.in:8080/jspui/handle/123456789/2022-
dc.description.abstractA numerical algorithm based on the probabilistic path integral approach for solving Schroedinger equation has been devised to treat molecular systems without Born-Oppenheimer approximation in the non relativistic limit at zero temperature as an alternative to conventional Variational and perturbation methods. Using high quality variational trial functions and path integral method based on Generalized Feynman-Kac method, we have been able to calculate the non-Born-Oppenheimer energy for hydrogen molecule for the sigma state and hydrogen molecular ion. Combining these values and the value for ionization potential for atomic hydrogen, dissociation energy and ionization potential for hydrogen molecule have been determined to be 36 113.672(3) cm inverse and 124.446.066(10) cm inverse.respectively. Our results favorably compare with other theoretical and experimental results and thus show the promise of being a nonperturbative alternative for testing fundamental physical theories.en_US
dc.language.isoenen_US
dc.publisherQuantum Physicsen_US
dc.subjectQuantum simulationen_US
dc.subjectMolecular systemsen_US
dc.subjectNon-Born-Oppenheimer dynamicsen_US
dc.subjectSchroedinger equationen_US
dc.subjectBorn-Oppenheimeren_US
dc.titleQuantum Simulation of Non-Born-Oppenheimer Dynamics in Molecular Systems by Path Integralsen_US
dc.typeArticleen_US
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