260 citations · 2.8k across the 136 of their papers we have counts for
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Dirty bosons in a three-dimensional harmonic trap
Tama Khellil, Axel Pelster
We study a three-dimensional Bose-Einstein condensate in an isotropic harmonic trapping potential with an additional delta-correlated disorder potential at both zero and finite tem…
Hartree-Fock Mean-Field Theory for Trapped Dirty Bosons
Tama Khellil, Axel Pelster
Here we work out in detail a non-perturbative approach to the dirty boson problem, which relies on the Hartree-Fock theory and the replica method. For a weakly interacting Bose gas…
Numerical study of localized impurity in a Bose-Einstein condensate
Javed Akram, Axel Pelster
Motivated by recent experiments, we investigate a single impurity in the center of a trapped Bose-Einstein condensate. Within a zero-temperature…
Analytical and numerical study of dirty bosons in a quasi-one-dimensional harmonic trap
Tama Khellil, Antun Balaz, Axel Pelster
The emergence of a Bose-glass region in a quasi one-dimensional Bose-Einstein-condensed gas in a harmonic trapping potential with an additional delta-correlated disorder potential…
Ground-state properties of anyons in a one-dimensional lattice
Guixin Tang, Sebastian Eggert, Axel Pelster
Using the Anyon-Hubbard Hamiltonian, we analyze the ground-state properties of anyons in a one-dimensional lattice. To this end we map the hopping dynamics of correlated anyons to…
Quasi one-dimensional Bose-Einstein condensate in gravito-optical surface trap
Javed Akram, Benjamin Girodias, Axel Pelster
We study both static and dynamic properties of a weakly interacting Bose-Einstein condensate (BEC) in a quasi one-dimensional gravito-optical surface trap, where the downward pull…