The influence of local correlations on the phase states in the model of «semi-hard-core» bosons on a square lattice

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We considered a model of charged «semi-hard-core» bosons on a square lattice with a possible occupation number 𝑛𝑖 = 0, 1, 2 at each node. Using the quantum Monte-Carlo method, temperature phase diagrams of the model were obtained and the influence of local charge correlations was studied. It is shown that local charge correlations lead to an increase in the role of quantum fluctuations in the formation of phase states.

Sobre autores

V. Ulitko

Ural Federal University

Autor responsável pela correspondência
Email: vasiliy.ulitko@urfu.ru
Rússia, Ekaterinburg

V. Konev

Ural Federal University

Email: vasiliy.ulitko@urfu.ru
Rússia, Ekaterinburg

A. Chikov

Ural Federal University

Email: vasiliy.ulitko@urfu.ru
Rússia, Ekaterinburg

Y. Panov

Ural Federal University

Email: vasiliy.ulitko@urfu.ru
Rússia, Ekaterinburg

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