Browsing by Subject "Interaction strength"

Now showing items 1-3 of 3

Collective modes and superfluidity of a two-dimensional ultracold Bose gas

Singh, Vijay Pal; Mathey, Ludwig (College Park, MD : APS, 2021)

The collective modes of a quantum liquid shape and impact its properties profoundly, including its emergent phenomena such as superfluidity. Here we present how a two-dimensional Bose gas responds to a moving lattice ...
Spin-chain model for strongly interacting one-dimensional Bose-Fermi mixtures

Deuretzbacher, Frank; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, Luis (College Park, MD : American Physical Society, 2017)

Strongly interacting one-dimensional (1D) Bose-Fermi mixtures form a tunable XXZ spin chain. Within the spin-chain model developed here, all properties of these systems can be calculated from states representing the ordering ...
Symmetry-broken states in a system of interacting bosons on a two-leg ladder with a uniform Abelian gauge field

Greschner, Sebastian; Piraud, M.; Heidrich-Meisner, F.; McCulloch, I.P.; Schollwöck, U.; Vekua, T. (College Park, MD : American Physical Society, 2016)

We study the quantum phases of bosons with repulsive contact interactions on a two-leg ladder in the presence of a uniform Abelian gauge field. The model realizes many interesting states, including Meissner phases, vortex ...

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