Slave Boson Formulation for Interacting Boson Systems and the Superfluid-Insulator Transition

Raymond Fresard

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arXiv · cond-mat/9405053

Slave Boson Formulation for Interacting Boson Systems and the Superfluid-Insulator Transition

Raymond Fresard

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Abstract

A new formulation for the study of interacting bosons on a lattice is introduced. This approach is used to give analytical expressions for the Mott insulating lobes in the phase diagram and to calculate the density-density correlation function. It is also shown that, at mean-field level, this newly introduced slave boson theory coincides with mean-field theory of a suitably introduced order parameter.

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Raymond Fresard. 1994-05-20. Slave Boson Formulation for Interacting Boson Systems and the Superfluid-Insulator Transition. https://arxiv.org/abs/cond-mat/9405053

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