Probing electric and magnetic vacuum fluctuations with quantum dots
arXiv:1404.1232 · doi:10.1103/PhysRevLett.113.043601
Abstract
The electromagnetic-vacuum-field fluctuations are intimately linked to the process of spontaneous emission of light. Atomic emitters cannot probe electric- and magnetic-field fluctuations simultaneously because electric and magnetic transitions correspond to different selection rules. In this paper we show that semiconductor quantum dots are fundamentally different and are capable of mediating electric-dipole, magnetic-dipole, and electric-quadrupole transitions on a single electronic resonance. As a consequence, quantum dots can probe electric and magnetic fields simultaneously and can thus be applied for sensing the electromagnetic environment of complex photonic nanostructures. Our study opens the prospect of interfacing quantum dots with optical metamaterials for tailoring the electric and magnetic light-matter interaction at the single-emitter level.
arXiv comment6 pages, 4 figures
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- Chiral Quantum Optics
- Interfacing single photons and single quantum dots with photonic nanostructures
- Quantum limits to the energy resolution of magnetic field sensors
- Enhancement of and interference among higher order multipole transitions in molecules near a plasmonic nanoantenna
- Coherent Control of Two-Dimensional Excitons
- Unraveling the mesoscopic character of quantum dots in nanophotonics
- Interaction of atomic systems with quantum vacuum beyond electric dipole approximation
- A complete set of eigenstates for position-dependent massive particles in a Morse-like scenario
- Generalized noise terms for the quantized fluctuational electrodynamics