2014/10/01 by Thorsten Arnold, Chi-Shung Tang, Andrei Manolescu +1
Computer Science · Physics and Astronomy · #Bohr model #Charge (physics) #Dipole #Excitation #Excited state #Fourier transform #Mechanical and Optical Resonators #Photon #Quantum #Quantum Information and Cryptography #Spectral line #Strong Light-Matter Interactions #cond-mat.mes-hall
paper · pdf · doi:10.1088/2040-8978/17/1/015201
published as Journal of Optics 17, 015201 (2015) · RevTeX, 9 pages with 10 embedded eps-figures
arxiv created 2014/10/01 · openalex publication_date 2014/12/12 · arxiv updated 2014/12/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We explore the response of a quantum ring system coupled to a photon cavity with a single mode when excited by a classical dipole field. We find that the energy oscillates between the electronic and photonic components of the system. The contribution of the linear and the quadratic terms in the vector potential to the electron-photon interaction energy are of similar magnitude, but opposite signs stressing the importance of retaining both in the model. Furthermore, we find different Fourier spectra for the oscillations of the center of charge and the oscillations of the mean photon number in time. The Fourier spectra are compared to the spectrum of the many-body states and selection rules discussed. In case of the center of charge oscillations, the dipole matrix elements preselect the allowed Bohr frequencies of the transitions, while for the oscillations of the mean photon number, the difference of the photon content of the many-body states influences the selection rules.