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
18 papers · 2 filters
Analyzing a Bose polaron across resonant interactions
L. A. Peña Ardila, N. B. Jörgensen, T. Pohl +3
Recently, two independent experiments reported the observation of long-lived polarons in a Bose-Einstein condensate, providing an excellent setting to study the generic scenario of…
Observation of Atom Number Fluctuations in a Bose-Einstein Condensate
M. A. Kristensen, M. B. Christensen, M. Gajdacz +7
Fluctuations are a key property of both classical and quantum systems. While the fluctuations are well understood for many quantum systems at zero temperature, the case of an inter…
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…
Dropping an impurity into a Chern insulator: a polaron view on topological matter
A. Camacho-Guardian, N. Goldman, P. Massignan +1
We investigate the properties of an impurity particle interacting with a Fermi gas in a Chern-insulating state. The interaction leads to the formation of an exotic polaron, which c…
Dilute Fluid Governed by Quantum Fluctuations
Nils B. Jørgensen, Georg M. Bruun, Jan J. Arlt
Understanding the effects of interactions in complex quantum systems beyond the mean-field paradigm constitutes a fundamental problem in physics. Here, we show how the atom numbers…
Induced -wave pairing in Bose-Fermi mixtures
Jami J. Kinnunen, Zhigang Wu, Georg M. Bruun
Cooper pairing caused by an induced interaction represents a paradigm in our description of fermionic superfluidity. Here, we present a strong coupling theory for the critical temp…
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…
Interactions between Rydberg excitons in CuO
Valentin Walther, Sjard Ole Krüger, Stefan Scheel +1
Highly-excited states of excitons in cuprous oxide have recently been observed at a record quantum number of up to . Here, we evaluate the long-range interactions between pai…
Temperature dependence of an Efimov resonance in
Lars J. Wacker, Nils B. Jørgensen, Kristoffer T. Skalmstang +3
Ultracold atomic gases are an important testing ground for understanding few-body physics. In particular, these systems enable a detailed study of the Efimov effect. We use ultraco…
Critical slowdown of non-equilibrium polaron dynamics
Kristian Knakkergaard Nielsen, Luis A. Peña Ardila, Georg M. Bruun +1
We study the quantum dynamics of a single impurity following its sudden immersion into a Bose-Einstein condensate. The ensuing formation of the Bose polaron in this general setting…
Measuring the single-particle density matrix for fermions and hard-core bosons in an optical lattice
Luis A. Peña Ardila, Markus Heyl, André Eckardt
Ultracold atoms in optical lattices provide clean, tunable, and well-isolated realizations of paradigmatic quantum lattice models. With the recent advent of quantum-gas microscopes…
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…
Stabilising Fulde-Ferrel-Larkin-Ovchinnikov Superfluidity with long-range Interactions in a mixed dimensional Bose-Fermi System
Jonatan Melkær Midtgaard, Georg M. Bruun
We analyse the stability of inhomogeneous superfluid phases in a system consisting of identical fermions confined in two layers that are immersed in a Bose-Einstein condensate (BEC…
Ground-state properties of Dipolar Bose polarons
L. A. Peña Ardila, T. Pohl
We consider a quantum impurity immersed in a dipolar Bose Einstein condensate and study the properties of the emerging polaron. We calculate the energy, effective mass and quasi-pa…
Bipolarons in a Bose-Einstein Condensate
A. Camacho-Guardian, L. A. Peña Ardila, T. Pohl +1
Mobile impurities in a Bose-Einstein condensate form quasiparticles called polarons. Here, we show that two such polarons can bind to form a bound bipolaron state. Its emergence is…
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…
One-Dimensional Quantum Systems - From Few to Many Particles
A. S. Dehkharghani
In this thesis, I go through the well-known solutions to the one and two-particle systems trapped in a quantum harmonic oscillator and then continue to the three, four and many-bod…
Global optimization for quantum dynamics of few-fermion systems
Xikun Li, Daniel Pęcak, Tomasz Sowiński +2
Quantum state preparation is vital to quantum computation and quantum information processing tasks. In adiabatic state preparation, the target state is theoretically obtained with…