31 citations · 40 across the 2 of their papers we have counts for
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Process chain approach to the Bose-Hubbard model: Ground-state properties and phase diagram
Niklas Teichmann, Dennis Hinrichs, Martin Holthaus +1
We carry out a perturbative analysis, of high order in the tunneling parameter, of the ground state of the homogeneous Bose-Hubbard model in the Mott insulator phase. This is made…
Bose-Hubbard phase diagram with arbitrary integer filling
Niklas Teichmann, Dennis Hinrichs, Martin Holthaus +1
We study the transition from a Mott insulator to a superfluid in both the two- and the three-dimensional Bose-Hubbard model at zero temperature, employing the method of the effecti…
Differences between mean-field dynamics and N-particle quantum dynamics as a signature of entanglement
Christoph Weiss, Niklas Teichmann
A Bose-Einstein condensate in a tilted double-well potential under the influence of time-periodic potential differences is investigated in the regime where the mean-field (Gross-Pi…
Generation of mesoscopic superpositions of a binary Bose-Einstein condensate in a slightly asymmetric double well
Christoph Weiss, Niklas Teichmann
A previous publication [Europhysics Letters 78, 10009 (2007)] suggested to coherently generate mesoscopic superpositions of a two-component Bose-Einstein condensate in a double wel…
Coherently controlled entanglement generation in a binary Bose-Einstein condensate
Niklas Teichmann, Christoph Weiss
Considering a two-component Bose-Einstein condensate in a double-well potential, a method to generate a Bell state consisting of two spatially separated condensates is suggested. F…