91 citations · 193 across the 7 of their papers we have counts for
12 papers · 1 filter
Scissors modes in generalized Gross-Pitaevskii equations
Oleksandr V. Marchukov, Neelam Shukla, Bastien Humbert +3
We investigate scissors modes in nonlinear systems with arbitrary power-law dependence of the nonlinear term. Through analytical derivation, we establish a general expression demon…
Effective two- and three-body interactions between dressed impurities in a tilted double-well potential
F. Theel, A. G. Volosniev, D. Diplaris +3
We explore the impact and scaling of effective interactions between two and three impurity atoms, induced by a bosonic medium, on their density distributions. To facilitate the det…
From spontaneous to explicit symmetry breaking in a finite-sized system: Bosonic bound states of an impurity
L. Chergui, F. Brauneis, T. Arnone Cardinale +3
The presence of a single attractive impurity in an ultracold repulsive bosonic system can drive a transition from a homogeneous to a localized state, as we here show for a one-dime…
Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
S. I. Mistakidis, A. G. Volosniev, R. E. Barfknecht +5
Cold atomic gases have become a paradigmatic system for exploring fundamental physics, which at the same time allows for applications in quantum technologies. The accelerating deve…
Impurities in a one-dimensional Bose gas: the flow equation approach
F. Brauneis, H. -W. Hammer, M. Lemeshko +1
A few years ago, flow equations were introduced as a technique for calculating the ground-state energies of cold Bose gases with and without impurities. In this paper, we extend th…
Generation of spin currents by a temperature gradient in a two-terminal device
R. E. Barfknecht, A. Foerster, N. T. Zinner +1
Theoretical and experimental studies of the interaction between spins and temperature are vital for the development of spin caloritronics, as they dictate the design of future devi…