54 citations · 135 across the 7 of their papers we have counts for
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cond-mat.str-el2014★ 54 cited
Investigation of metal-insulator like transition through the ab initio density matrix renormalization group approach
E. Fertitta, B. Paulus, G. Barcza +1
We have studied the Metal-Insulator like Transition (MIT) in lithium and beryllium ring-shaped clusters through ab initio Density Matrix Renormalization Group (DMRG) method. Perfor…
cond-mat.str-el2014★ 38 cited
Entanglement patterns and generalized correlation functions in quantum many body systems
G. Barcza, R. M. Noack, J. Sólyom +1
We introduce transition operators that in a given basis of the single-site states of a many-body system have a single non-vanishing matrix element and introduce their correlation f…
cond-mat.str-el2011★ 25 cited
On the dimerized phase in the cross-coupled antiferromagnetic spin ladder
G. Barcza, O. Legeza, R. M. Noack +1
We revisit the phase diagram of the frustrated s=1/2 spin ladder with antiferromagnetic rung and diagonal couplings. In particular, we reexamine the evidence for the columnar dimer…