本文選題：測量時間　切入點：原子鐘　出處：《物理》2017年10期 　論文類型：期刊論文

【摘要】：正精確測量時間之能力已對社會產(chǎn)生了巨大影響,從海洋航行計時器(在十八世紀推進航海),到星載原子鐘(今天全球定位系統(tǒng)(GPS)之基礎(chǔ)設(shè)備)。但是,物理學對我們測量時間的能力有什么基本的限制呢?在一篇新論文中,來自西班牙巴塞羅那Autonomous大學的Paul Erker和他的同事認為,在這樣的限制中熱力學起關(guān)鍵作用�？紤]一個簡單的量子鐘模型,他們在準確性和分辨率兩個特性之間建立了定量
[Abstract]:The ability to accurately measure time has had a huge impact on society, ranging from ocean navigational timers (in 18th century) to the basic equipment of spaceborne atomic clocks (today's Global Positioning system (GPS)). What are the basic limitations of physics on our ability to measure time? In a new paper, Paul Erker of the University of Autonomous in Barcelona, Spain, and his colleagues believe that thermodynamics plays a key role in such limitations. Consider a simple quantum clock model. They built a quantitative relationship between accuracy and resolution.
【作者單位】： 中國科學院理化技術(shù)研究所;
【分類號】：O414.1
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本文編號：1583734