Quantum-Limited Atomic Receiver in the Electrically Small Regime
Quantum-Limited Atomic Receiver in the Electrically Small Regime
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 $1{0}^{7}$ times smaller than the cube of the electric field wavelength. We introduce the standard quantum limit for data capacity, and experimentally …