Open hybrid quantum systems
Julkaistu sarjassa
JYU dissertationsTekijät
Päivämäärä
2022Tekijänoikeudet
© The Author & University of Jyväskylä
The recent technological and scientific advances has allowed for the fabrication and ever-progressing characterization of interacting quantum mechanical systems. I focus on the theoretical description of such hybrid quantum systems. Specifically, I discuss two prototypical classes of light-matter systems: polaritonic and optomechanical systems. They are characterized by linear and nonlinear quantum mechanical interactions, respectively. I introduce possible physical realizations, discuss light-matter interaction giving rise to polaritons, and derive optomechanical interaction for a ferromagnetic system. The experimental reality also requires an understanding of dissipation and decoherence. I therefore describe how input-output formalism can be employed to model the optical response of open hybrid quantum systems. In addition, I discuss the possibility of the electromagnetic vacuum modifying chemistry by the formation of hybridized light-matter states, polaritons. These theoretical approaches to open hybrid quantum systems have wider applicability than their physical realizations and further elucidates the possibilities of light-matter interaction.
This dissertation is composed of an introductory text and five publications — three of which have been published while two are under peer review at the time of writing.
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Julkaisija
Jyväskylän yliopistoISBN
978-951-39-9188-3ISSN Hae Julkaisufoorumista
2489-9003Julkaisuun sisältyy osajulkaisuja
- Artikkeli I: Kansanen, K. S. U., Asikainen, A., Toppari, J. J., Groenhof, G., & Heikkilä, T. T. (2019). Theory for the stationary polariton response in the presence of vibrations. Physical Review B, 100(24), Article 245426. DOI: 10.1103/PhysRevB.100.245426. JYX: jyx.jyu.fi/handle/123456789/67341
- Artikkeli II: Kansanen, K. S. U., Toppari, J. J., & Heikkilä, T. T. (2021). Polariton response in the presence of Brownian dissipation from molecular vibrations. Journal of Chemical Physics, 154(4), Article 044108. DOI: 10.1063/5.0036905. JYX: jyx.jyu.fi/handle/123456789/74020
- Artikkeli III: Kansanen, K. S. U. and Heikkilä, T. T. (2022). Cavity-induced bifurcation in classical rate theory. Arxiv
- Artikkeli IV: Kansanen, K. S. U. (2022). Theory for polaritonic quantum tunneling. Arxiv
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