What is the significance of sub-millikelvin temperatures?
Extremely low temperatures
High temperatures
Room temperature
Boiling point
Answer
Extremely low temperatures, known as sub-millikelvin temperatures, are significant because they allow for the study of quantum phenomena that are typically masked by thermal noise at higher temperatures. In this regime, quantum effects become dominant, enabling the exploration of exotic states of matter such as superfluids and Bose-Einstein condensates. Sub-millikelvin temperatures also facilitate the development of ultra-sensitive sensors and the investigation of fundamental properties of materials.
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