paper

Quantum-Limited Atomic Receiver in the Electrically Small Regime

arXiv:1805.09808 · doi:10.1103/PhysRevLett.121.110502

Abstract

We use a quantum sensor based on thermal Rydberg atoms to receive data encoded in electromagnetic fields in the extreme electrically small regime, with a sensing volume over times smaller than the cube of the electric field wavelength. We introduce the standard quantum limit for data capacity, and experimentally observe quantum-limited data reception for bandwidths from 10~kHz up to 30~MHz. In doing this, we provide a useful alternative to classical communication antennas, which become increasingly ineffective when the size of the antenna is significantly smaller than the wavelength of the electromagnetic field.

arXiv comment6 pages, 3 figures

References in corpus (20)

Cited by in corpus (52)