838 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Forschungszentrum JülichDE268 papers
- University of WuppertalDE96 papers
- RWTH Aachen UniversityDE58 papers
- Eötvös Loránd UniversityHU57 papers
- University of GroningenNL48 papers
- University of RegensburgDE41 papers
- Zernike Institute for Advanced MaterialsNL37 papers
- University of EdinburghGB25 papers
- Deutsches Elektronen-Synchrotron DESYDE23 papers
- University of LiverpoolGB21 papers
- Centre National de la Recherche ScientifiqueFR20 papers
- The University of AdelaideAU19 papers
22 papers · 1 filter
Multiple magnetic states of CoPc molecule on a two-dimensional layer of NbSe
Ana M. Montero, Filipe S. M. Guimarães, Samir Lounis
Molecular spintronics hinges on the detailed understanding of electronic and magnetic properties of molecules interfaced with various materials. Here we demonstrate with ab-initio…
Random State Technology
Fengping Jin, Dennis Willsch, Madita Willsch +3
We review and extend, in a self-contained way, the mathematical foundations of numerical simulation methods that are based on the use of random states. The power and versatility of…
Quantum non-demolition dispersive readout of a superconducting artificial atom using large photon numbers
Daria Gusenkova, Martin Spiecker, Richard Gebauer +13
Reading out the state of superconducting artificial atoms typically relies on dispersive coupling to a readout resonator. For a given system noise temperature, increasing the circu…
From Ji to Jaffe-Manohar orbital angular momentum in Lattice QCD using a direct derivative method
M. Engelhardt, J. R. Green, N. Hasan +5
A Lattice QCD approach to quark orbital angular momentum in the proton based on generalized transverse momentum-dependent parton distributions (GTMDs) is enhanced methodologically…
Electronic instabilities in Penrose quasi-crystals: competition, coexistence and collaboration of order
Jonas B. Profe, Carsten Honerkamp, Sebastian Achilles +1
Quasicrystals lack translational symmetry, but can still exhibit long-ranged order, promoting them to candidates for unconventional physics beyond the paradigm of crystals. Here, w…
Lattice study of thermodynamic properties of dense QCD
N. Astrakhantsev, V. V. Braguta, E. -M. Ilgenfritz +2
In this paper we study thermodynamic properties of dense cold QCD within lattice simulation with dynamical rooted staggered quarks which in the continuum limit correspond t…
HeAT -- a Distributed and GPU-accelerated Tensor Framework for Data Analytics
Markus Götz, Daniel Coquelin, Charlotte Debus +9
To cope with the rapid growth in available data, the efficiency of data analysis and machine learning libraries has recently received increased attention. Although great advancemen…
Leveraging Machine Learning to Alleviate Hubbard Model Sign Problems
Jan-Lukas Wynen, Evan Berkowitz, Stefan Krieg +2
Lattice Monte Carlo calculations of interacting systems on non-bipartite lattices exhibit an oscillatory imaginary phase known as the phase or sign problem, even at zero chemical p…
Solving the Bethe-Salpeter equation on massively parallel architectures
Xiao Zhang, Sebastian Achilles, Jan Winkelmann +3
The last ten years have witnessed fast spreading of massively parallel computing clusters, from leading supercomputing facilities down to the average university computing center. M…
-wave and -wave scattering and the and resonances from lattice QCD
Gumaro Rendon, Luka Leskovec, Stefan Meinel +6
We present a lattice-QCD determination of the elastic isospin- -wave and -wave scattering amplitudes as a function of the center-of-mass energy using Lüscher's meth…
Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model
Thomas Schäfer, Nils Wentzell, Fedor Šimkovic +23
The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard model at weak coupling…
Long-Time Correlations in Single-Neutron Interferometry Data
M. Willsch, D. Willsch, K. Michielsen +5
We present a detailed analysis of the time series of time-stamped neutron counts obtained by single-neutron interferometry. The neutron counting statistics display the usual Poisso…
The Semimetal-Mott Insulator Quantum Phase Transition of the Hubbard Model on the Honeycomb Lattice
Johann Ostmeyer, Evan Berkowitz, Stefan Krieg +3
We take advantage of recent improvements in the grand canonical Hybrid Monte Carlo algorithm, to perform a precision study of the single-particle gap in the hexagonal Hubbard model…
Extending the average spectrum method: Grid points sampling and density averaging
Khaldoon Ghanem, Erik Koch
Analytic continuation of imaginary time or frequency data to the real axis is a crucial step in extracting dynamical properties from quantum Monte Carlo simulations. The average sp…
Deconfinement transition line with the Complex Langevin equation up to
M. Scherzer, D. Sexty, I. -O. Stamatescu
We study the deconfinement transition line in QCD for quark chemical potentials up to (). To circumvent the sign problem we use the complex Langevin e…
Dispersion relation and spectral range of Karsten-Wilczek and Borici-Creutz fermions
Stephan Dürr, Johannes H. Weber
We investigate some properties of Karsten-Wilczek and Borici-Creutz fermions, which are the best known varieties in the class of minimally doubled lattice fermion actions. Our focu…
Pseudogap opening in the two-dimensional Hubbard model: A functional renormalization group analysis
Cornelia Hille, Daniel Rohe, Carsten Honerkamp +1
Using the recently introduced multiloop extension of the functional renormalization group, we compute the frequency- and momentum-dependent self-energy of the two-dimensional Hubba…
The QCD crossover at finite chemical potential from lattice simulations
Szabolcs Borsanyi, Zoltan Fodor, Jana N. Guenther +6
We provide the most accurate results for the QCD transition line so far. We optimize the definition of the crossover temperature , allowing for its very precise determination,…
Leading hadronic contribution to the muon magnetic moment from lattice QCD
Sz. Borsanyi, Z. Fodor, J. N. Guenther +11
We compute the leading order hadronic vacuum polarization (LO-HVP) contribution to the anomalous magnetic moment of the muon, , using lattice QCD. Calculations are perform…
Convergence analysis of multi-level spectral deferred corrections
Gitte Kremling, Robert Speck
The spectral deferred correction (SDC) method is class of iterative solvers for ordinary differential equations (ODEs). It can be interpreted as a preconditioned Picard iteration f…
A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting
E. O. Asante-Asamani, A. Kleefeld, B. A. Wade
A second-order -stable exponential time-differencing (ETD) method is developed by combining an ETD scheme with approximating the matrix exponentials by rational functions having…
Rational spectral filters with optimal convergence rate
Konrad Kollnig, Paolo Bientinesi, Edoardo Di Napoli
In recent years, contour-based eigensolvers have emerged as a standard approach for the solution of large and sparse eigenvalue problems. Building upon recent performance improveme…