期刊
NEW JOURNAL OF PHYSICS
卷 14, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/14/1/013036
关键词
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资金
- Icelandic Research and Instruments Funds
- University of Iceland
- National Science Council, Taiwan [NSC97-2112-M-239-003-MY3, NSC100-2112-M-239-001-MY3, 97-2112-M-002-012-MY3, 100-2112-M-002-003-MY3]
- National Taiwan University [99R80869, 99R80871]
- National Center for Theoretical Sciences, Taiwan
We investigate the coupling between a quantized electromagnetic field in a cavity resonator and a Coulomb interacting electronic system in a nanostructure in an external magnetic field. The effects caused by the geometry of the electronic system and the polarization of the electromagnetic field are explicitly taken into account. Our numerical results demonstrate that the two-level system approximation and the Jaynes-Cummings model remain valid in the weak electron-photon coupling regime, while the quadratic vector potential in the diamagnetic part of the charge current leads to significant correction to the energy spectrum in the strong coupling regime. Furthermore, we find that coupling to a strong cavity photon mode polarizes the charge distribution of the system, requiring a large basis of single-electron eigenstates to be included in the model.
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