Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2008-07-08
Phys. Rev. A 79, 053630 (2009)
Physics
Condensed Matter
Strongly Correlated Electrons
Same as the published version
Scientific paper
10.1103/PhysRevA.79.053630
We calculate the ground-state properties of fermionic dipolar atoms or molecules in a one-dimensional double-tube potential by using the Luttinger liquid theory and the density matrix renormalization-group calculation. When the external field is applied near a magic angle with respect to the double-tube plane, the long-ranged dipolar interaction can generate a spontaneous correlation between fermions in different tubes, even when the bare intertube tunneling rate is negligibly small. Such interaction-induced correlation strongly enhances the contrast of the interference fringes and therefore can be easily observed in the standard time-of-flight experiment.
Chang Chi-Ming
Chen Pochung
Lai Chen-Yen
Shen Wei-Chao
Wang Daw-Wei
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