Fermionic Superfluidity with Imbalanced Spin Populations

We have observed fermionic superfluidity with population imbalance and the Clogston limit of superfluidity in an ultracold Fermi mixture [Zwierlein et al,2006]. Importantly, this demonstrated that in the case of population imbalance, there is no longer a smooth crossover from a Bose-Einstein condens...

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Published in2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference p. 1
Main Authors Zwierlein, M. W., Schirotzek, A., Schunck, C. H., Shin, Y., Ketterle, W.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2007
Subjects
Density measurement
Electric breakdown
Electrons
Laboratories
Magnetic fields
Magnetic flux
Stress
Superconductivity
Temperature
Testing
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Summary:We have observed fermionic superfluidity with population imbalance and the Clogston limit of superfluidity in an ultracold Fermi mixture [Zwierlein et al,2006]. Importantly, this demonstrated that in the case of population imbalance, there is no longer a smooth crossover from a Bose-Einstein condensate of molecules to a BCS type superfluid. Instead, as the pairing strength is varied, phase transitions occur between the superfluid and the normal state.
ISBN:9781424409303
1424409306
DOI:10.1109/CLEOE-IQEC.2007.4386708