Vacuum-dressed cavity magnetotransport of a 2D electron gas
arXiv:1805.02623 · doi:10.1103/PhysRevB.98.205301
Abstract
We present a theory predicting how the linear magnetotransport of a two-dimensional electron gas is modified by a passive electromagnetic cavity resonator where no real photons are injected nor created. For a cavity photon mode with in-plane linear polarization, the dc bulk magnetoresistivity of the 2D electron gas is anisotropic. In the regime of high filling factors of the Landau levels, the envelope of the Shubnikov-de Haas oscillations is profoundly modified and the resistivity can be increased or reduced depending on the system parameters. In the limit of low magnetic fields, the resistivity along the cavity-mode polarization direction is enhanced in the ultrastrong light-matter coupling regime. Our work shows the crucial role of virtual polariton excitations in controlling the dc charge transport properties of cavity-embedded systems.
7 pages, 4 figures, version accepted on Physical Review B
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- Quantum fluids of light
- Quantum nature of a strongly-coupled single quantum dot-cavity system
- Extraordinary exciton conductance induced by strong coupling
- Cavity enhanced transport of excitons
- Terahertz light-matter interaction beyond unity coupling strength
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