
We explore the behavior of the Hall response of a Bose-Hubbard triangular ladder in a magnetic field as a function of the repulsive on-site atomic interactions. We consider a wide range of interaction strengths, from the weakly interacting limit to the hard-core regime. This is realized by computing the Hall polarization following the quench of a weak linear potential, which induces the flow of a current through the system, using time-dependent matrix product state numerical simulations. We complement our understanding in the regime of small magnetic fields by analytical calculations of the equilibrium value of the Hall polarization for noninteracting bosonic atoms and under a mean-field assumption. The Bose-Hubbard triangular flux ladder exhibits a rich phase diagram, containing Meissner, vortex, and biased-chiral, superfluid phases. We show that the Hall response can be employed to fingerprint the various chiral states, the frustration effects occurring in the limit of strong interactions, and the phase boundaries of the equilibrium phase diagram.
Quantum Physics, Strongly Correlated Electrons (cond-mat.str-el), Quantum Gases (cond-mat.quant-gas), Physics, QC1-999, Quantum Gases, Strongly Correlated Electrons, FOS: Physical sciences, Quantum Physics (quant-ph), 500.2
Quantum Physics, Strongly Correlated Electrons (cond-mat.str-el), Quantum Gases (cond-mat.quant-gas), Physics, QC1-999, Quantum Gases, Strongly Correlated Electrons, FOS: Physical sciences, Quantum Physics (quant-ph), 500.2
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