Hypergeometric continuation of divergent perturbation series: I. Critical exponents of the Bose–Hubbard model

Hypergeometric continuation of divergent perturbation series: I. Critical exponents of the Bose–Hubbard model

We study the connection between the exponent of the order parameter of the Mott insulator-to-superfluid transition occurring in the two-dimensional Bose–Hubbard model, and the divergence exponents of its one- and two-particle correlation functions. We find that at the multicritical points all diverg...

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Bibliographic Details
Main Authors: Sören Sanders, Martin Holthaus
Format: Article
Language:English
Published: IOP Publishing 2017-01-01
Series:New Journal of Physics
Subjects:
quantum phase transition
critical exponents
Bose–Hubbard model
analytic continuation
05.30.Rt
02.30.Mv
Online Access:https://doi.org/10.1088/1367-2630/aa9165

Internet

https://doi.org/10.1088/1367-2630/aa9165

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