4 papers
Dynamic Spin Structure Factor of SrCu2(BO3)2 at Finite Temperatures
S. El Shawish, J. Bonca, I. Sega
Using finite temperature Lanczos technique on finite clusters we calculate dynamical spin structure factor of the quasi-two-dimensional dimer spin liquid SrCu2(BO3)2 as a function…
Comment on ''Kondo resonances and Fano antiresonances in transport through quantum dots''
J. Bonca, A. Ramsak, T. Rejec
We show that the numerical method [M.E. Torio, K. Hallberg, A.H. Ceccatto, and C.R. Proetto, Phys. Rev. B 65, 085302 (2002), cond-mat/0108167v2] does not reproduce correctly the Ko…
Tunneling through an Aharonov-Bohm ring -- effects of dephasing by electron-electron interactions
Rok Zitko, Janez Bonca
We develop a non-perturbative numerical method to study a single electron tunneling through an Aharonov-Bohm ring in the presence of bound, interacting electrons. Inelastic process…
Stripes in a three-chain Hubbard ladder: a comparison of density-matrix renormalization group and constrained-path Monte Carlo results
J. Bonca, J. E. Gubernatis, M. Guerrero +2
Using both the density-matrix renormalization group method and the constrained-path quantum Monte Carlo method, we have studied the ground-state energies and the spin and hole dens…