Persistent current induced by quantum light
arXiv:1207.5586 · doi:10.1103/PhysRevB.86.155108
Abstract
It is demonstrated that the strong coupling of an electron gas to photons in systems with broken time-reversal symmetry results in bound electron-photon states which cannot be backscattered elastically. As a consequence, the electron gas can flow without dissipation. This quantum macroscopic phenomenon leads to the unconventional superconductivity which is analyzed theoretically for a two-dimensional electron system in a semiconductor quantum well exposed to an in-plane magnetic field.
6 pages, 2 figures; published version
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- Semiconductor cavity QED: Bandgap induced by vacuum fluctuations
- Semiconductor quantum well irradiated by a two-mode electromagnetic field as a terahertz emitter
- On the possibility of a terahertz light emitting diode based on a dressed quantum well
- Lamb Shift of Energy Levels in Quantum Rings