Quantum Metrology

Understanding the ‘C’ Mark on Product Packaging

by
Understanding the 'C' Mark on Product Packaging

Click on the above“Hunan Metrology Field”to follow us With the development of the economy and society, the proportion of quantitatively packaged products in the market is increasing. For instance, most food and cosmetics closely related to consumer interests are quantitatively packaged products. The state implements the ‘C’ mark system for quantitatively packaged products. The Meaning … Read more

Basic Sensitivity Limits of Non-Hermitian Quantum Sensors

by
Basic Sensitivity Limits of Non-Hermitian Quantum Sensors

Non-Hermitian systems can be used as an effective description of the short-term behavior of open quantum systems, and they are widely used to describe dissipative or non-reciprocal optical and acoustic systems. In recent years, non-Hermitian systems have received widespread attention from theoretical and experimental scientists, and have been realized in various experimental platforms such as … Read more