141 citations · 744 across the 21 of their papers we have counts for
21 papers
Magnetic field induced criticality in superconducting two-leg ladders
Temo Vekua
We study critical singularities in the d-wave-like superconducting phase of the hole-doped Hubbard model of repulsively interacting electrons, defined on a two-leg ladder, induced…
Exact asymptotic correlation functions of bilinear spin operators of the Heisenberg antiferromagnetic spin- chain
Temo Vekua, Gaoyong Sun
Exact asymptotic expressions of the uniform parts of the two-point correlation functions of bilinear spin operators in the Heisenberg antiferromagnetic spin- chain are…
Quantum Otto heat engine based on a multiferroic chain working substance
Maryam Azimi, Levan Chotorlishvili, Sunil K. Mishra +3
We study a quantum Otto engine operating on the basis of a helical spin- 1/2 multiferroic chain with strongly coupled magnetic and ferroelectric order parameters. The presence of a…
Universal logarithmic temperature dependence of magnetic susceptibility of one-dimensional electrons at critical values of magnetic field
Temo Vekua
We study the leading low temperature dependence of magnetic susceptibility of one-dimensional electrons with fixed total number of particles at the magnetic fields equal to zero te…
Helical multiferroics for electric field controlled quantum information processing
M. Azimi, L. Chotorlishvili, S. K. Mishra +3
Magnetoelectric coupling in helical multiferroics allows to steer spin order with electric fields. Here we show theoretically that in a helical multiferroic chain quantum informati…
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…