Rydberg atoms are a platform for high-sensitivity quantum sensing of free-space electric fields, with progress in detecting low-frequency signals. This work proposes and demonstrates a quantum sensing scheme for low-frequency electric signals using modulated auxiliary fields in Rydberg atoms, differing from conventional methods that employ external DC electric fields.
Modulated Fields Boost Rydberg Atom Electric Signal Sensing
Rydberg atoms are a platform for high-sensitivity quantum sensing of free-space electric fields, with progress in detecting low-frequency signals. This work proposes and demonstrates a quantum sensing scheme for low-frequency electric signals using modulated auxiliary fields in Rydberg atoms, differing from conventional methods that employ external DC electric fields.