Category : Quantum Physics Kit
Entanglement Demonstrator
Hands‑on quantum entanglement experiments for education, research & labs
The Entanglement Demonstrator from qutools is a precision experiment system for generating and analyzing polarization‑entangled photon pairs. It provides a clear, interactive way to observe quantum entanglement, offering stable performance, compact design, and easy integration into educational and l...
Entanglement Demonstrator Technical Specification
| Operating Wavelength | 810 ± 10 nm |
| Pump Laser Power | 15 mW (standard) / up to 100 mW (high-rate) |
| Single Count Rate | > 10 kHz (standard) / > 50 kHz (high-rate) |
| Coincidence Count Rate | > 1 kHz (standard) / > 5 kHz (high-rate) |
| Entanglement Visibility (Bell Test) | > 88% (typically ~92%) |
| Coincidence Window | ~40 ns |
Applications
- • Quantum entanglement demonstration
- • Bell inequality (CHSH) violation
- • Quantum key distribution (QKD)
- • Quantum state tomography
- • Two-photon interference (HOM)
- • Single-photon quantum optics experiments
Overview
The ED is a quantum optics experiment platform for the generation and analysis of polarization-entangled photon pairs. A high-power UV diode laser pumps a nonlinear crystal, where photon pairs are generated via spontaneous parametric down-conversion, producing correlated near-infrared photons in accordance with energy and momentum conservation. The system is modular and extendable using optical add-on boards, enabling advanced experiments through dedicated modules such as the Michelson Interferometer, Hong–Ou–Mandel (HOM), Hanbury Brown–Twiss (HBT), Quantum Key Distribution (QKD), and Quantum State Tomography, making it ideal for both education and research in quantum physics.