| Topic: |
Science > Physics |
| User: |
"Sam Wormley" |
| Date: |
11 May 2007 12:14:18 AM |
| Object: |
Fermions pair up without superfluidity |
Fermions pair up without superfluidity (May 10)
http://physicsweb.org/article/news/11/5/11
In recent years physicists have realized that fermions can exhibit
superfluid behaviour because of their ability to pair up at very low
temperatures. Now a US group has shown that if a mixture of fermions is
prepared with the majority in the same spin state, they can appear to
pair up without behaving as a superfluid at all. This discovery might
eventually enable a greater insight into high-temperature
superconductivity, which also involves pairing but is often too complex
to study directly (Science 316 867).
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