Interacting bosons on crystalline and quasiperiodic ladders in a magnetic field

Johnstone, Dean; Öhberg, Patrik; Duncan, Callum W.

doi:10.1103/physrevresearch.5.023195

Phys. Rev. Research

2023

DOI: 10.1103/physrevresearch.5.023195

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Interacting bosons on crystalline and quasiperiodic ladders in a magnetic field

Dean Johnstone

Patrik Öhberg

Callum W. Duncan

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2024

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Cited by 2 publications

References 108 publications

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Interacting bosons on a four-leg flux ladder

Zhang,

Yang

2024

Commun. Theor. Phys.

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We conduct a dynamical Gutzwiller mean-field study of interacting bosons on a four-leg ladder, subject to a uniform flux. The ground states dependent on the magnetic flux and kinetic tunneling strength are explored. Consequently, we identify the super-vortical lattice, as well as the inner-Meissner phase, which presents Meissner currents just along the intimal legs within the flux ladder. The staggered-current phase is also allowed, with its formation condition altered because of the four-leg construction. The number of legs on the flux ladder can make an effect.

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Interacting bosons on a four-leg flux ladder

Zhang,

Yang

2024

Commun. Theor. Phys.

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Spatial inversion symmetry breaking of vortex current in a biased-ladder superfluid

Huang,

Yao

2024

Phys. Rev. Research

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We investigate the quench dynamics of interacting bosons on a two-leg ladder in the presence of a uniform Abelian gauge field. The model hosts a variety of emergent quantum phases, and we focus on the superfluid biased-ladder phase breaking the Z2 symmetry of two legs. We observe an asymmetric spreading of vortex current and particle density, i.e., the vortices propagate ballistically on the right and dissolve during the propagation on the left, indicating spontaneous breaking of the spatial inversion symmetry. By decreasing the repulsion strength, it is found that the ballistic propagating vortices are more robust than the dissolving ones on the other side. Published by the American Physical Society 2024

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Interacting bosons on crystalline and quasiperiodic ladders in a magnetic field

Cited by 2 publications

References 108 publications

Interacting bosons on a four-leg flux ladder

Interacting bosons on a four-leg flux ladder

Spatial inversion symmetry breaking of vortex current in a biased-ladder superfluid

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