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dc.contributor.authorWerther, Michaelen
dc.contributor.authorGrossmann, Franken
dc.contributor.authorHuang, Zhongkaien
dc.contributor.authorZhao, Yangen
dc.identifier.citationWerther, M., Grossmann, F., Huang, Z., & Zhao, Y. (2019). Davydov-Ansatz for Landau-Zener-Stueckelberg-Majorana transitions in an environment : tuning the survival probability via number state excitation. The Journal of Chemical Physics, 150(23), 234109-. doi:10.1063/1.5096158en
dc.description.abstractWe theoretically investigate transitions in a two-level system, which are induced by a sweep through an avoided crossing in the presence of coupling to a single, excited bosonic mode. This allows us to propose an initial number-state bosonic excitation as a new possible control parameter for the survival probability at long times. The expansion of number states in terms of coherent states centered around points on a circle in phase space makes a multi-Davydov-Ansatz the method of choice to perform the required numerical calculations. It is revealed that the starting time of the transition greatly affects the final transition probabilities. In addition, we found that the mixing angle, which is tuning between the diagonal and off-diagonal coupling, is decisive for the ability to control the transition via number state excitation. For a mixing angle of π/4, we found the maximal effect of number state excitation on the transition probability.en
dc.format.extent10 p.en
dc.relation.ispartofseriesThe Journal of Chemical Physicsen
dc.rights© 2019 The Author(s). All rights reserved. This paper was published by AIP Publishing in The Journal of Chemical Physics and is made available with permission of The Author(s).en
dc.subjectOpen Quantum Systemsen
dc.subjectTime-dependent Schrodinger Equationen
dc.titleDavydov-Ansatz for Landau-Zener-Stueckelberg-Majorana transitions in an environment : tuning the survival probability via number state excitationen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.description.versionPublished versionen
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