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• W2808610049 abstract "The interaction effects in ultracold Fermi gases with SU($N$) symmetry are studied non-perturbatively in half-filled one-dimensional lattices by employing quantum Monte Carlo simulations.We find that as $N$ increases, weak and strong interacting systems are driven to a crossover region, but from opposite directions as a convergence of itinerancy and Mottness.In the weak interaction region, particles are nearly itinerant,and inter-particle collisions are enhanced by $N$, resulting in the amplification of interaction effects. In contrast, in the strong coupling region, increasing $N$ softens the Mott-insulating background through the enhanced virtual hopping processes.The crossover region exhibits nearly $N$-independent physical quantities, including the relative bandwidth, Fermi distribution, and the spin structure factor.The difference between even-$N$ and odd-$N$ systems is most prominent at small $N$'s with strong interactions, since the odd case allows local real hopping with an energy scale much larger than the virtual one.The above effects can be experimentally tested in ultracold atom experiments with alkaline-earth (-like) fermions such as $^{87}$Sr ($^{173}$Yb)." @default.
• W2808610049 created "2018-06-21" @default.
• W2808610049 creator A5025529150 @default.
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• W2808610049 date "2018-10-19" @default.
• W2808610049 modified "2023-10-18" @default.
• W2808610049 title "Interaction Effects with Varying <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>N</mml:mi></mml:math> in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi>SU</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mi>N</mml:mi><mml:mo stretchy=false>)</mml:mo></mml:mrow></mml:math> Symmetric Fermion Lattice Systems" @default.
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• W2808610049 doi "https://doi.org/10.1103/physrevlett.121.167205" @default.
• W2808610049 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30387656" @default.
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