Quantum Metrology

Measurement science that uses quantum resources — entanglement and squeezing — to surpass classical precision limits.

Specifications & Metrics

type

Concept

Core Principles & Analysis

• The study of making high-resolution and highly sensitive measurements of physical parameters using quantum theory to describe the systems.
• It particularly exploits quantum entanglement and quantum squeezing to beat the precision available in a classical framework.
• LIGO employs squeezed light from the O4 observing run in May 2023, providing broadband sensitivity improvements for measuring spacetime distortions.

Sources

• Wikipedia: Quantum metrology