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Critical Phenomena Near the Superfluid Transition of Four Helium

Critical Phenomena Near the Superfluid Transition of Four Helium
四氦超流转变附近的临界现象
批准号：
8918393
负责人：
Guenter Ahlers
金额：
$0.0万
依托单位：
University of California-Santa Barbara
依托单位国家：
美国
项目类别：
Continuing grant
财政年份：
1990
资助国家：
美国
项目状态：
已结题
起止时间：
1990-01-15 至 1992-10-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918393&HistoricalAwards=false
关键词：
CriticalPhenomenaNearSuperfluidTransition

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中文摘要
翻译
最近开发的超高分辨率测温仪将用于研究氦- 4在lambda跃迁附近的行为，在这种情况下，存在明确的限制几何形状或动态热流。热导率、二次声传播和向超流态转变温度的测量将用于测试最近的重整化群计算和新的热边界阻力现象。
英文摘要
Recently developed ultrahigh resolution thermometry will be employed in studies of the behavior of helium-four near the lambda transition in situations where well defined confining geometries or dynamic heat currents are present. Measurements of the thermal conductivity, second sound propagation and the transition temperature to the superfluid state will be made to test recent renormalization group calculations and novel thermal boundary resistance phenomena.
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