We have observed phase separation between the superfluid and the normal component in a strongly interacting Fermi gas with imbalanced spin populations. The in situ distribution of the density difference between two trapped spin components is obtained using phase-contrast imaging and 3D image reconstruction. A shell structure is clearly identified where the superfluid region of equal densities is surrounded by a normal gas of unequal densities. The phase transition induces a dramatic change in the density profiles as excess fermions are expelled from the superfluid.

Shin, Y., Zwierlein M., W., Schunck, C., Schirotzek, A., & Ketterle, W. (2006). Observation of phase separation in a strongly interacting imbalanced fermi gas. PHYSICAL REVIEW LETTERS, 97(3), 030401 [10.1103/PhysRevLett.97.030401].

Observation of phase separation in a strongly interacting imbalanced fermi gas

SCHUNCK, CHRISTIAN;
2006

Abstract

We have observed phase separation between the superfluid and the normal component in a strongly interacting Fermi gas with imbalanced spin populations. The in situ distribution of the density difference between two trapped spin components is obtained using phase-contrast imaging and 3D image reconstruction. A shell structure is clearly identified where the superfluid region of equal densities is surrounded by a normal gas of unequal densities. The phase transition induces a dramatic change in the density profiles as excess fermions are expelled from the superfluid.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - Fisica Sperimentale
English
Shin, Y., Zwierlein M., W., Schunck, C., Schirotzek, A., & Ketterle, W. (2006). Observation of phase separation in a strongly interacting imbalanced fermi gas. PHYSICAL REVIEW LETTERS, 97(3), 030401 [10.1103/PhysRevLett.97.030401].
Shin, Y; Zwierlein M., W; Schunck, C; Schirotzek, A; Ketterle, W
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/189681
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