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19 papers · 2 filters
Mixed parity pairing in a dipolar gas
G. M. Bruun, C. Hainzl, M. Laux
We show that fermionic dipoles in a two-layer geometry form Cooper pairs with both singlet and triplet components, when they are tilted with respect to the normal of the planes. Th…
Few-body precursor of the Higgs mode in a superfluid Fermi gas
J. Bjerlin, S. M. Reimann, G. M. Bruun
We demonstrate that an undamped few-body precursor of the Higgs mode can be investigated in a harmonically trapped Fermi gas. Using exact diagonalisation, the lowest monopole mode…
Liquid crystal phases of two-dimensional dipolar gases and Berezinskii-Kosterlitz-Thouless melting
Zhigang Wu, Jens K. Block, Georg M. Bruun
Liquid crystals are phases of matter intermediate between crystals and liquids. Whereas classical liquid crystals have been known for a long time and are used in electro-optical di…
Using superlattice potentials to probe long-range magnetic correlations in optical lattices
Kim G. L. Pedersen, Brian M. Andersen, Georg M. Bruun +1
In Pedersen et al. (2011) we proposed a method to utilize a temporally dependent superlattice potential to mediate spin-selective transport, and thereby probe long and short range…
Computation of local exchange coefficients in strongly interacting one-dimensional few-body systems: local density approximation and exact results
O. V. Marchukov, E. H. Eriksen, J. M. Midtgaard +4
One-dimensional multi-component Fermi or Bose systems with strong zero-range interactions can be described in terms of local exchange coefficients and mapping the problem into a sp…
Comparing models for the ground state energy of a trapped one-dimensional Fermi gas with a single impurity
N. J. S. Loft, L. B. Kristensen, A. E. Thomsen +1
We discuss the local density approximation approach to calculating the ground state energy of a one-dimensional Fermi gas containing a single impurity, and compare the results with…