Home▸Quantum Physics▸Autler-Townes Splitting in a Driven Three-Level Atom

🔬 Autler-Townes Splitting in a Driven Three-Level Atom

See how a strong coupling laser dresses a three-level atom's states, splitting the probe absorption line into a doublet whose separation tracks the coupling field's Rabi frequency.

Quantum Physics3DModerate60 FPS

The simulation shows a three-level atom's probe absorption spectrum splitting into a doublet as a strong coupling field dresses two of its energy levels, with peak separation tracking the coupling Rabi frequency.

🔬 What It Demonstrates

🎮 How to Use

Adjust the coupling field Rabi frequency and detuning sliders to watch the dressed-state energies shift and the probe absorption doublet separate, broaden, or become asymmetric in real time.

💡 Did You Know?

Rydberg-atom microwave sensors exploit Autler-Townes splitting between Rydberg states with such enormous dipole moments that they can detect microwave fields with sensitivity rivaling or exceeding conventional antenna-based receivers.

⚙ Under the hood

See how a strong coupling laser dresses a three-level atom's states, splitting the probe absorption line into a doublet whose separation tracks the coupling field's Rabi frequency.

autler-townesdressed statesquantum opticsthree-level atomrabi splittingatomic physicscoherent controlspectroscopy

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install