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
14 papers · 1 filter
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…
Fully relativistic treatment of light neutrinos in -body simulations
Thomas Tram, Jacob Brandbyge, Jeppe Dakin +1
Cosmological -body simulations are typically purely run with particles using Newtonian equations of motion. However, such simulations can be made fully consistent with general r…
A Solvable Model for Decoupling of Interacting Clusters
Artem G. Volosniev, Aksel S. Jensen, Nathan L. Harshman +2
We consider M clusters of interacting particles, whose in-group interactions are arbitrary, and inter-group interactions are approximated by oscillator potentials. We show that the…
Quantum interference device for controlled two-qubit operations
Niels Jakob Søe Loft, Morten Kjaergaard, Lasse Bjørn Kristensen +5
Universal quantum computing relies on high-fidelity entangling operations. Here we demonstrate that four coupled qubits can operate as a quantum gate, where two qubits control the…
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…
A controllable two-qubit swapping gate using superconducting circuits
S. E. Rasmussen, K. S. Christensen, N. T. Zinner
In this paper we investigate a linear chain of qubits and determine that it can be configured into a conditional two-qubit swapping gate, where the first and last qubits of the cha…
Realizing time crystals in discrete quantum few-body systems
R. E. Barfknecht, S. E. Rasmussen, A. Foerster +1
The exotic phenomenon of time translation symmetry breaking under periodic driving - the time crystal - has been shown to occur in many-body systems even in clean setups where diso…
Momentum space sampling of neutrinos in -body simulations
Jacob Brandbyge, Steen Hannestad, Thomas Tram
Including massive neutrinos in -body simulations is a challenging task due to the large thermal velocities of the neutrinos. In particle based codes this leads to problems of sh…
Combined few-body and mean-field model for nuclei
D. Hove, E. Garrido, P. Sarriguren +4
The challenging nuclear many-body problem is discussed along with classifications and qualitative descriptions of existing methods and models. We present detailed derivations of a…
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…
Energy levels repulsion by spin-orbit coupling in two-dimensional Rydberg excitons
V. A. Stephanovich, E. Ya. Sherman, N. T. Zinner +1
We study the effects of Rashba spin-orbit coupling on two-dimensional Rydberg exciton systems. Using analytical and numerical arguments we demonstrate that this coupling considerab…
Testing the Cosmic Shear Spatially-Flat Universe Approximation with Generalized Lensing and Shear Spectra
Peter L. Taylor, Thomas D. Kitching, Jason D. McEwen +1
We introduce the Generalised Lensing and Shear Spectra GLaSS code which is available for download from https://github.com/astro-informatics/GLaSS It is a fast and flexible public c…
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…
Realization of efficient quantum gates with a superconducting qubit-qutrit circuit
T. Bækkegaard, L. B. Kristensen, N. J. S. Loft +3
Building a quantum computer is a daunting challenge since it requires good control but also good isolation from the environment to minimize decoherence. It is therefore important t…