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cond-mat.str-el2013★ 34 cited
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…
cond-mat.str-el2011★ 44 cited
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…