147 citations · 326 across the 4 of their papers we have counts for
4 papers
Spontaneous increase of magnetic flux and chiral-current reversal in bosonic ladders: Swimming against the tide
S. Greschner, M. Piraud, F. Heidrich-Meisner +3
The interplay between spontaneous symmetry breaking in many-body systems, the wavelike nature of quantum particles and lattice effects produces an extraordinary behavior of the chi…
Vortex and Meissner phases of strongly-interacting bosons on a two-leg ladder
M. Piraud, F. Heidrich-Meisner, I. P. McCulloch +3
We establish the phase diagram of the strongly-interacting Bose-Hubbard model defined on a two-leg ladder geometry in the presence of a homogeneous flux. Our work is motivated by a…
Current fidelity susceptibility and conductivity in one-dimensional lattice models with open and periodic boundary conditions
S. Greschner, A. K. Kolezhuk, T. Vekua
We study, both numerically and analytically, the finite size scaling of the fidelity susceptibility χ_{J} with respect to the charge or spin current in one-dimensional lattice mode…
Frustrated spin chains in strong magnetic field: dilute two-component Bose gas regime
A. K. Kolezhuk, F. Heidrich-Meisner, S. Greschner +1
We study the ground state of frustrated spin-S chains in a strong magnetic field in the immediate vicinity of saturation. In strongly frustrated chains, the magnon dispersion has t…