Resonance superfluidity in a quantum degenerate Fermi gas.
Resonance superfluidity in a quantum degenerate Fermi gas.
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DOI：
10.1103/physrevlett.87.120406
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发表时间：
2001-03
影响因子：
8.6
通讯作者：
Servaas Kokkelmans;Murray Holland;R. Walser;M. Chiofalo
中科院分区：
文献类型：
--
作者：
Servaas Kokkelmans;Murray Holland;R. Walser;M. Chiofalo
我们认为超流相变时出现的Feshbach共振配对发生在一个稀释的费米气体。我们应用我们的理论来考虑钾（（40）K）的特定共振，并发现在可实现的实验条件下，在约0.5T（F）的高临界温度下向超流相的转变是可能的。在这种情况下观察超流性将提供机会，实验研究从弱耦合费米子的超流相到强束缚复合玻色子的玻色-爱因斯坦凝聚的交叉。
We consider the superfluid phase transition that arises when a Feshbach resonance pairing occurs in a dilute Fermi gas. We apply our theory to consider a specific resonance in potassium ((40)K), and find that for achievable experimental conditions, the transition to a superfluid phase is possible at the high critical temperature of about 0.5T(F). Observation of superfluidity in this regime would provide the opportunity to experimentally study the crossover from the superfluid phase of weakly coupled fermions to the Bose-Einstein condensation of strongly bound composite bosons.