Cavity QED Calculator
Enter atom-cavity coupling, decay rates, and cavity parameters. The Cavity QED Calculator instantly computes vacuum Rabi frequency, cooperativity, critical parameters, and strong coupling condition.
About the Cavity QED Calculator
The Cavity QED Calculator is a precise, scientifically accurate tool that computes key parameters in cavity quantum electrodynamics — the study of strong light-matter interaction in resonant cavities. This Cavity QED Calculator implements the fundamental Jaynes-Cummings model and strong coupling criteria used in quantum optics research worldwide. Proudly supported by Agri Care Hub.
Scientific Formulas
Cooperativity: C = g² / (κ γ)
Critical atom number: N₀ = 2κ γ / g²
Critical photon number: m₀ = γ² / (4 g²)
Strong coupling condition: g > (κ + γ)/4
Why This Calculator Is Essential
Cavity QED is at the frontier of quantum physics, enabling: • Strong light-matter coupling • Quantum gates and quantum networks • Single-photon sources and transistors • Quantum nonlinear optics • Tests of quantum mechanics foundations • Precision measurement and sensing The strong coupling regime (g > κ, γ) is the gateway to quantum control of light and matter.
How to Use
- Enter coupling strength g (atom-cavity interaction, MHz).
- Enter atomic decay rate γ and cavity decay rate κ (MHz).
- Click “Calculate Cavity QED”.
- See cooperativity, critical parameters, and coupling regime.
When Should You Use This Tool?
- Cavity QED experiment design
- Strong coupling verification
- Quantum optics research
- Single-photon source optimization
- Quantum information processing
- Teaching Jaynes-Cummings model
Scientific Foundation
Cavity QED was pioneered by Serge Haroche and David Wineland (Nobel Prize 2012). The Jaynes-Cummings model exactly describes a two-level atom interacting with a single cavity mode. The strong coupling regime g > κ, γ enables coherent exchange of energy before dissipation. Full theory at Cavity QED on Wikipedia and Haroche & Raimond’s *Exploring the Quantum*.
Conclusion
The Cavity QED Calculator brings the cutting edge of quantum optics to your browser — with perfect accuracy and beautiful design. Whether you’re a student learning the Jaynes-Cummings model, a researcher pushing strong coupling limits, or an engineer designing quantum devices, this tool delivers precise results every time. For more quantum tools, visit Agri Care Hub.