463 citations · 3k across the 44 of their papers we have counts for
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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
The dual-fermion approach provides a formally exact prescription for calculating properties of a correlated electron system in terms of a diagrammatic expansion around dynamical me…
Design of MLSD-Based Receivers for Short-Range Optical Communications Using the Volterra Expansion
Raquel G. Machado, Beatrice Tomasi, Hartmut Hafermann +1
Maximum Likelihood Sequence Detectors (MLSD) have been largely used to mitigate the Chromatic Dispersion (CD) in Intensity Modulation/Direct Detection (IM/DD) optical communication…
Optical Fiber MIMO Channel Model and its Analysis
Apostolos Karadimitrakis, Aris L. Moustakas, Hartmut Hafermann +1
Technology is moving towards space division multiplexing in optical fiber to keep up the trend in rate increase over time and to avoid an imminent capacity crunch. Thus, it is of p…
Double occupancy in DMFT and the Dual Boson approach
Erik G. C. P. van Loon, Friedrich Krien, Hartmut Hafermann +3
We discuss the calculation of the double occupancy using Dynamical Mean-Field Theory (DMFT) in finite dimensions. The double occupancy can be determined from the susceptibility of…