323 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Aarhus UniversityDK63 papers
- Universidade Federal do Rio Grande do SulBR6 papers
- Max Planck Institute for Radio AstronomyDE5 papers
- University of CopenhagenDK5 papers
- London Centre for NanotechnologyGB4 papers
- Technische Universität DarmstadtDE4 papers
- Hamburg Centre for Ultrafast Imaging3 papers
- Universität HamburgDE3 papers
- University College LondonGB3 papers
- University of BonnDE3 papers
- AlbaNovaSE2 papers
- Austrian Academy of SciencesAT2 papers
15 papers · 1 filter
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…
Clusters in Separated Tubes of Tilted Dipoles
Jeremy R. Armstrong, Aksel S. Jensen, Artem G. Volosniev +1
A few-body cluster is a building block of a many-body system in a gas phase provided the temperature at most is of the order of the binding energy of this cluster. Here we illustra…
Ion-induced interactions in a Tomonaga-Luttinger liquid
Andreas Bock Michelsen, Manuel Valiente, Nikolaj Zinner +1
We investigate the physics of a Tomonaga-Luttinger liquid of spin-polarized fermions superimposed on an ion chain. This compound system features (attractive) long-range interspecie…
Dynamics of spin and density fluctuations in strongly interacting few-body systems
Rafael Emilio Barfknecht, Angela Foerster, Nikolaj Thomas Zinner
The decoupling of spin and density dynamics is a remarkable feature of quantum one-dimensional many-body systems. In a few-body regime, however, little is known about this phenomen…
Effective approach to impurity dynamics in one-dimensional trapped Bose gases
S. I. Mistakidis, A. G. Volosniev, N. T. Zinner +1
We investigate a temporal evolution of an impurity atom in a one-dimensional trapped Bose gas following a sudden change of the boson-impurity interaction strength. Our focus is on…
Correlated Gaussian Approach to Anisotropic Resonantly Interacting Few-Body Systems
F. S. Møller, D. V. Fedorov, A. S. Jensen +1
Quantum mechanical few-body systems in reduced dimensionalities can exhibit many interesting properties such as scale-invariance and universality. Analytical descriptions are often…
Effects of interaction imbalance in a strongly repulsive one-dimensional Bose gas
R. E. Barfknecht, A. Foerster, N. T. Zinner
We calculate the spatial distributions and the dynamics of a few-body two-component strongly interacting Bose gas confined to an effectively one-dimensional trapping potential. We…
Coalescence of Two Impurities in a Trapped One-dimensional Bose Gas
A. S. Dehkharghani, A. G. Volosniev, N. T. Zinner
We study the ground state of a one-dimensional (1D) trapped Bose gas with two mobile impurity particles. To investigate this set-up, we develop a variational procedure in which the…
Emergence of junction dynamics in a strongly interacting Bose mixture
Rafael E. Barfknecht, Angela Foerster, Nikolaj T. Zinner
We study the dynamics of a one-dimensional system composed of a bosonic background and one impurity in single- and double-well trapping geometries. In the limit of strong interacti…
Quasiparticle properties of a mobile impurity in a Bose-Einstein condensate
Rasmus Søgaard Christensen, Jesper Levinsen, Georg M. Bruun
We develop a systematic perturbation theory for the quasiparticle properties of a single impurity immersed in a Bose-Einstein condensate. Analytical results are derived for the imp…
Strongly interacting two-dimensional Fermi gases
Jesper Levinsen, Meera M. Parish
We review the current understanding of the uniform two-dimensional (2D) Fermi gas with short-range interactions. We first outline the basics of two-body scattering in 2D, including…
Strong-coupling ansatz for the one-dimensional Fermi gas in a harmonic potential
Jesper Levinsen, Pietro Massignan, Georg M. Bruun +1
A major challenge in modern physics is to accurately describe strongly interacting quantum many-body systems. One-dimensional systems provide fundamental insights since they are of…
Efimov trimers under strong confinement
Jesper Levinsen, Pietro Massignan, Meera M. Parish
The dimensionality of a system can fundamentally impact the behaviour of interacting quantum particles. Classic examples range from the fractional quantum Hall effect to high tempe…
Observation of a Strong Atom-Dimer Attraction in a Mass-Imbalanced Fermi-Fermi Mixture
Michael Jag, Matteo Zaccanti, Marko Cetina +5
We investigate a mixture of ultracold fermionic K atoms and weakly bound LiK dimers on the repulsive side of a heteronuclear atomic Feshbach resonance. By radio…
Pair Correlations in the Two-Dimensional Fermi Gas
V. Ngampruetikorn, J. Levinsen, Meera M. Parish
We consider the two-dimensional Fermi gas at finite temperature with attractive short-range interactions. Using the virial expansion, which provides a controlled approach at high t…