Publications (30)
Design of MLSD-Based Receivers for Short-Range Optical Communications Using the Volterra Expansion
Raquel G. Machado, Beatrice Tomasi, Hartmut Hafermann +1
Partially Ordered Statistics Demapping for Multi-Dimensional Modulation Formats
Djalal F. Bendimerad, Huijian Zhang, Ingmar Land +1
Intersite electron correlations in a Hubbard model on inhomogeneous lattices
Nayuta Takemori, Akihisa Koga, Hartmut Hafermann
Beyond extended dynamical mean-field theory: Dual boson approach to the two-dimensional extended Hubbard model
Erik G. C. P. van Loon, Alexander I. Lichtenstein, Mikhail I. Katsnelson +2
Double occupancy in DMFT and the Dual Boson approach
Erik G. C. P. van Loon, Friedrich Krien, Hartmut Hafermann +3
Intersite electron correlations on inhomogeneous lattices: a real-space dual fermion approach
Nayuta Takemori, Akihisa Koga, Hartmut Hafermann
Collective Charge Excitations of Strongly Correlated Electrons, Vertex Corrections and Gauge Invariance
Hartmut Hafermann, Erik G. C. P. van Loon, Mikhail I. Katsnelson +2
Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information
Bin Chen, Chigo Okonkwo, Hartmut Hafermann +1
TRIQS: A Toolbox for Research on Interacting Quantum Systems
Olivier Parcollet, Michel Ferrero, Thomas Ayral +4
Diagrammatic Monte Carlo approach for diagrammatic extensions of dynamical mean-field theory -- convergence analysis of the dual fermion technique
Jan Gukelberger, Evgeny Kozik, Hartmut Hafermann
Improved Estimators for the Self-Energy and Vertex Function in Hybridization Expansion Continuous-Time Quantum Monte Carlo Simulations
Hartmut Hafermann, Kelly R. Patton, Philipp Werner
Fermion-boson vertex within Dynamical Mean-Field Theory
Erik G. C. P. van Loon, Friedrich Krien, Hartmut Hafermann +2
Self-energy and vertex functions from hybridization expansion continuous-time quantum Monte Carlo for impurity models with retarded interaction
Hartmut Hafermann
From Hubbard bands to spin-polaron excitations in the doped Mott material Na$_x$CoO$_2$
Aljoscha Wilhelm, Frank Lechermann, Hartmut Hafermann +2
Orthogonal Polynomial Representation of Imaginary-Time Green's Functions
Lewin Boehnke, Hartmut Hafermann, Michel Ferrero +2
Superperturbation theory on the real-axis
Christoph Jung, Aljoscha Wilhelm, Hartmut Hafermann +2
Multiband Dual Fermion Approach to Quantum Criticality in the Hubbard Honeycomb Lattice
Daniel Hirschmeier, Hartmut Hafermann, Alexander I. Lichtenstein
Precursors of the insulating state in the square lattice Hubbard model
Erik G. C. P. van Loon, Hartmut Hafermann, Mikhail Katsnelson
Second-order dual fermion approach to the Mott transition in the two-dimensional Hubbard model
Erik G. C. P. van Loon, Mikhail I. Katsnelson, Hartmut Hafermann
Superperturbation solver for quantum impurity models
Hartmut Hafermann, Christoph Jung, Sergey Brener +3
Mechanisms of finite temperature magnetism in the three-dimensional Hubbard model
Daniel Hirschmeier, Hartmut Hafermann, Emanuel Gull +2
Four-dimensional polarization-ring-switching for dispersion-managed optical fibre systems
Bin Chen, Chigo Okonkwo, Hartmut Hafermann +1
Efficient implementation of the continuous-time hybridization expansion quantum impurity solver
Hartmut Hafermann, Philipp Werner, Emanuel Gull
Superconductivity, antiferromagnetism and phase separation in the two-dimensional Hubbard model: A dual-fermion approach
Junya Otsuki, Hartmut Hafermann, Alexander I. Lichtenstein
Fermi Condensation Near van Hove Singularities Within the Hubbard Model on the Triangular Lattice
Dmitry Yudin, Daniel Hirschmeier, Hartmut Hafermann +3
Measuring spin and charge correlations via tunneling-current conductance fluctuations
Kelly R. Patton, Hartmut Hafermann, Sergej Brener +2
Thermodynamic consistency of the charge response in dynamical mean-field based approaches
Erik G. C. P. van Loon, Hartmut Hafermann, Alexander I. Lichtenstein +1
Experimental Demonstration of Data Transmission Based on the Exact Inverse Periodic Nonlinear Fourier Transform
Jan-Willem Goossens, Yves Jaouën, Hartmut Hafermann
Polarization-Division Multiplexing Based on the Nonlinear Fourier Transform
Jan-Willem Goossens, Mansoor I. Yousefi, Yves Jaouën +1
Optical Fiber MIMO Channel Model and its Analysis
Apostolos Karadimitrakis, Aris L. Moustakas, Hartmut Hafermann +1