Antiferromagnetic order of strongly interacting fermions in a trap: Real-space dynamical mean-field analysis

M. Snoek, I. Titvinidze, C. Töke, K. Byczuk, W. Hofstetter

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102 Citations (Scopus)

Abstract

We apply dynamical mean-field theory to strongly interacting fermions in an inhomogeneous environment. With the help of this real-space dynamical mean-field theory (R-DMFT) we investigate antiferromagnetic states of repulsively interacting fermions with spin-1/2 in a harmonic potential. Within R-DMFT, antiferromagnetic order is found to be stable in spatial regions with total particle density close to one, but persists also in parts of the system where the local density significantly deviates from half filling. In systems with spin imbalance, we find that antiferromagnetism is gradually suppressed and phase separation emerges beyond a critical value of the spin imbalance.

Original languageEnglish
Article number093008
JournalNew Journal of Physics
Volume10
DOIs
Publication statusPublished - Sep 10 2008

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fermions
traps
antiferromagnetism
harmonics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Antiferromagnetic order of strongly interacting fermions in a trap : Real-space dynamical mean-field analysis. / Snoek, M.; Titvinidze, I.; Töke, C.; Byczuk, K.; Hofstetter, W.

In: New Journal of Physics, Vol. 10, 093008, 10.09.2008.

Research output: Contribution to journalArticle

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