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arXiv · 1012.2036

Phase diagram of one-dimensional earth-alkaline cold fermionic atoms

Heloise Nonne·Edouard Boulat·Sylvain Capponi·Philippe Lecheminant
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Abstract

The phase diagram of one-dimensional earth-alkaline fermionic atoms and ytterbium 171 atoms is investigated by means of a low-energy approach and density-matrix renormalization group calculations. For incommensurate filling, four gapless phases with a spin gap are found and consist of two superconducting instabilities and two coexisting bond and charge density-waves instabilities. In the half-filled case, seven Mott-insulating phases arise with the emergence of four non-degenerate phases with exotic hidden orderings.

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Heloise Nonne, Edouard Boulat, Sylvain Capponi, Philippe Lecheminant. 2010-12-09. Phase diagram of one-dimensional earth-alkaline cold fermionic atoms. https://doi.org/10.1142/s0217984911026668

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