21 citations · 50 across the 6 of their papers we have counts for
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Contour-time approach to the disordered Bose-Hubbard model in the strong coupling regime
Ali Mokhtari-Jazi, Matthew R. C. Fitzpatrick, Malcolm P. Kennett
There has been considerable interest in the disordered Bose Hubbard model (BHM) in recent years, particularly in the context of thermalization and many-body localization. We develo…
Phase and group velocities for correlation spreading in the Mott phase of the Bose-Hubbard model in dimensions greater than one
Ali Mokhtari-Jazi, Matthew R. C. Fitzpatrick, Malcolm P. Kennett
Lieb-Robinson and related bounds set an upper limit on the rate of spreading of information in non-relativistic quantum systems. Experimentally, they have been observed in the spre…
Contour-time approach to the Bose-Hubbard model in the strong coupling regime: Studying two-point spatio-temporal correlations at the Hartree-Fock-Bogoliubov level
Matthew R. C. Fitzpatrick, Malcolm P. Kennett
We develop a formalism that allows the study of correlations in space and time in both the superfluid and Mott insulating phases of the Bose-Hubbard Model. Specifically, we obtain…
Light-cone like spreading of single-particle correlations in the Bose-Hubbard model after a quantum quench in the strong coupling regime
Matthew R. C. Fitzpatrick, Malcolm P. Kennett
We study the spreading of correlations in space and time after a quantum quench in the Bose Hubbard model. We derive equations of motion for the single-particle Green's function wi…