activity
19932015
most citedTwo-site entropy and quantum phase transitions in low-dimensional models

162 citations · 932 across the 29 of their papers we have counts for

collaborators

29 papers

cond-mat.quant-gas2015★ 9 cited

Interplay between exotic superfluidity and magnetism in a chain of four-component ultracold atoms

E. Szirmai, G. Barcza, J. Sólyom +1

We investigate the spin-polarized chain of ultracold fermionic atoms with spin-3/2 described by the fermionic Hubbard model with SU(4) symmetric attractive interaction. The competi…

cond-mat.str-el2015★ 36 cited

Entanglement structure of the Hubbard model in momentum space

G. Ehlers, J. Sólyom, Ö. Legeza +1

We study the properties of the ground states of the one- and two-dimensional Hubbard models at half filling and moderate doping using entanglement-based measures, which we calculat…

cond-mat.str-el2015★ 2 cited

Momentum distribution functions in a one-dimensional extended periodic Anderson model

I. Hagymasi, J. Solyom, O. Legeza

We study the momentum distribution of the electrons in an extended periodic Anderson model, where the interaction, , between itinerant and localized electrons is taken into…

cond-mat.str-el2015★ 6 cited

Competition between Hund's coupling and Kondo effect in a one-dimensional extended periodic Anderson model

I. Hagymasi, J. Solyom, O. Legeza

We study the ground-state properties of an extended periodic Anderson model to understand the role of Hund's coupling between localized and itinerant electrons using the density-ma…

cond-mat.quant-gas2014★ 6 cited

Phase Separation of Superfluids in the Chain of Four-Component Ultracold Atoms

G. Barcza, E. Szirmai, J. Sólyom +1

We investigate the competition of various exotic superfluid states in a chain of spin-polarized ultracold fermionic atoms with hyperfine spin and s-wave contact interacti…

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…