21 citations · 86 across the 11 of their papers we have counts for
11 papers
Interaction-driven dynamics in graphene flakes as a benchmark for quantum simulation
Fabian Eickhoff, Satoshi Ejima, Lukas Windgätter +4
We study interaction-driven ultrafast dynamics in finite graphene flakes following an optical pump quench in an interacting tight-binding model. By comparing exact real-time evolut…
Power-Law Spectra and Asymptotic Scaling in the Orbital-Selective Mott Phase of a Three-Orbital Hubbard Model
Fabian Eickhoff
Quantum materials whose properties lie beyond the celebrated Landau Fermi-liquid paradigm have been observed for decades across diverse material platforms. Finding microscopic latt…
Flat-Band Driven Kondo Breakdown and Reentrant Effects in Heavy-Fermion Moiré Superlattices
Fabian Eickhoff, Jian-Xin Zhu, Benedikt Fauseweh
Moiré superlattices (MSLs) in van der Waals (vdW) heterostructures have demonstrated their incredible power in driving emergent electronic phenomena, some of which are reminiscent…
Kondo breakdown in multi-orbital Anderson lattices induced by destructive hybridization interference
Fabian Eickhoff, Frithjof B. Anders
In this paper we consider a multi band extension to the periodic Anderson model. We use a single site DMFT(NRG) in order to study the impact of the conduction band mediated effecti…
Spectral properties of strongly correlated multi impurity models in the Kondo insulator regime: Emergent coherence, metallic surface states and quantum phase transitions
Fabian Eickhoff, Frithjof B. Anders
We investigate the real-space spectral properties of strongly-correlated multi-impurity arrays in the Kondo insulator regime. Employing a recently developed mapping onto an effecti…
Kondo holes in strongly correlated impurity arrays: RKKY driven Kondo screening and hole-hole interactions
Fabian Eickhoff, Frithjof B. Anders
The emerging and screening of local magnetic moments in solids has been investigated for more than 60 years. Local vacancies as in graphene or in Heavy Fermions can induce decouple…
Strongly correlated multi-impurity models: The crossover from a single-impurity problem to lattice models
Fabian Eickhoff, Frithjof B. Anders
We present a mapping of correlated multi-impurity Anderson models to a cluster model coupled to a number of effective conduction bands capturing its essential low-energy physics. T…
Symmetric single-impurity Kondo model on a tight-binding chain: a comparison of analytical and numerical ground-state approaches
Gergely Barcza, Kevin Bauerbach, Fabian Eickhoff +3
We analyze the ground-state energy, local spin correlation, impurity spin polarization, impurity-induced magnetization, and corresponding zero-field susceptibilities of the symmetr…
Inelastic electron tunneling spectroscopy for probing strongly correlated many-body systems by scanning tunneling microscopy
Fabian Eickhoff, Elena Kolodzeiski, Taner Esat +7
We present an extension of the tunneling theory for scanning tunneling microcopy (STM) to include different types of vibrational-electronic couplings responsible for inelastic cont…
Effective low-energy description of the two impurity Anderson model: RKKY interaction and quantum criticality
Fabian Eickhoff, Benedikt Lechtenberg, Frithjof B. Anders
We show that the RKKY interaction in the two-impurity Anderson model comprise two contributions: a ferromagnetic part stemming from the symmetrized hybridization functions and an a…
Realistic quantum critical point in one-dimensional two-impurity models
Benedikt Lechtenberg, Fabian Eickhoff, Frithjof B. Anders
We show that the two-impurity Anderson model exhibits an additional quantum critical point at infinitely many specific distances between both impurities for an inversion symmetric…