Correlated versus Ferromagnetic State in Repulsively Interacting Two-Component Fermi Gases - Condensed Matter > Quantum GasesReportar como inadecuado




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Abstract: Whether a spin-1-2 Fermi gas will become ferromagnetic as the strength ofrepulsive interaction increases is a long-standing controversial issue.Recently this problem is studied experimentally by Jo et al, Science, 325, 15212009 in which the authors claim a ferromagnetic transition is observed. Thiswork is to point out the results of this experiment can not distinguish whetherthe system is in a ferromagnetic state or in a non-magnetic but stronglyshort-range correlated state. A conclusive experimental demonstration offerromagnetism relies on the observation of ferromagnetic domains.



Autor: Hui Zhai

Fuente: https://arxiv.org/







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