Abstract
We consider a system of two parallel quantum waveguides that coupled via a coupling window. The coupled waveguide system is exposed to an external magnetic field and coupled to a photon field. We take into account both the electron–electron and electron–photon interactions in the system and an exact diagonalization technique is used to treat these interactions. We investigate electron switching between the waveguides using external static magnetic field, side-dot gate, and quantized photon field. The role of the Coulomb interaction in electron switching is also presented. Furthermore, we show how a single photon can enhance electron transport between the waveguides where the photon is polarized in the same direction of electron motion.
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