Quantum Metrology

Chips are Transforming the Industry

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Chips are Transforming the Industry

Remember to star the public account ⭐️ to receive notifications promptly. Source：ContentTranslated fromphotonics。 The optical field rooted in classical precision mechanics and the semiconductor industry defined by microelectronics miniaturization, once distinctly different sectors, are increasingly overlapping at the forefront of innovation. This convergence is not coincidental. Rather, it is the result of shared technological challenges … Read more

Classification of Metrology

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Classification of Metrology

(1) Metrology can be classified into the following three categories based on its field: 1. Legal Metrology Legal metrology is carried out to ensure public safety, national economic and social development. It is enforced by the government or authorized entities according to legal, technical, and administrative needs. This includes explicit regulations and specific requirements for … Read more

Understanding the ‘C’ Mark on Product Packaging

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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

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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