Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR640 papers
- The University of SydneyAU475 papers
- University of BirminghamGB381 papers
- University of CopenhagenDK357 papers
- Instituto de Astrofísica de CanariasES341 papers
- Universidad de La LagunaES308 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR304 papers
- California Institute of TechnologyUS282 papers
- Center for Astrophysics Harvard & SmithsonianUS281 papers
- European Southern ObservatoryCL265 papers
- Astrophysique, Instrumentation et ModélisationFR259 papers
- Osservatorio Astronomico di PadovaIT258 papers
9 papers · 2 filters
Supefluidity of flat band Bose-Einstein condensates revisited
Aleksi Julku, Grazia Salerno, Päivi Törmä
We consider the superfluid weight, speed of sound and excitation fraction of a flat band Bose-Einstein condensate (BEC) within multiband Bogoliubov theory. The superfluid weight is…
Holes and magnetic polarons in a triangular lattice antiferromagnet
Jasper van de Kraats, Kristian K. Nielsen, Georg M. Bruun
The intricate interplay between charge motion and magnetic order in geometrically frustrated lattices is central for the properties of many two-dimensional quantum materials. The t…
Heating a dipolar quantum fluid into a solid
Juan Sánchez-Baena, Claudia Politi, Fabian Maucher +2
Raising the temperature of a material enhances the thermal motion of particles. Such an increase in thermal energy commonly leads to the melting of a solid into a fluid and eventua…
Life and death of the Bose polaron
Magnus G. Skou, Kristian Knakkergaard Nielsen, Thomas G. Skov +6
Spectroscopic and interferometric measurements complement each other in extracting the fundamental properties of quantum many-body systems. While spectroscopy provides precise meas…
Nonequilibrium Hole Dynamics in Antiferromagnets: Damped Strings and Polarons
K. Knakkergaard Nielsen, T. Pohl, G. M. Bruun
We develop a nonperturbative theory for hole dynamics in antiferromagnetic spin lattices, as described by the - model. This is achieved by generalizing the selfconsistent Bor…
Mediated interactions between ions in quantum degenerate gases
Shanshan Ding, Michael Drewsen, Jan J. Arlt +1
We explore the interaction between two trapped ions mediated by a surrounding quantum degenerate Bose or Fermi gas. Using perturbation theory valid for weak atom-ion interaction, w…
Strong photon interactions from weakly interacting particles
Arturo Camacho-Guardian, Miguel Bastarrachea-Magnani, Thomas Pohl +1
The hybridization of light and matter excitations in the form of polaritons has enabled major advances in understanding and controlling optical nonlinearities. Entering the quantum…
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…
Mobile impurity probing a two-dimensional superfluid phase transition
Ragheed Alhyder, Georg M. Bruun
The use of atomically sized quantum systems as highly sensitive measuring devices represents an exciting and quickly growing research field. Here, we explore the properties of a qu…