Monte Carlo simulations of the superfluid phase transition in an extended Feynman-Kikuchi model

Article

关键词: SUPERCONDUCTOR-INSULATOR TRANSITION;    PATH-INTEGRAL COMPUTATION;    UNIVERSAL CONDUCTIVITY;    LIQUID-HE-4;    MECHANICS;    BOSONS;   

DOI  :  10.1103/PhysRevB.76.174524

来源: SCIE

【 摘 要 】

We present Monte Carlo simulations of a generalization of the Feynman-Kikuchi model, which includes the possibility of vacancies and interactions between the particles undergoing exchange. By measuring the winding number (superfluid density) and density structure factor, we determine the phase diagram and show that it exhibits regions which possess both superfluid and charge ordering.

【 授权许可】

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