I. Kovács
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View article: Quantum Communication Networks Enhanced by Distributed Quantum Memories
Quantum Communication Networks Enhanced by Distributed Quantum Memories Open
Building large-scale quantum communication networks has its unique challenges. Here, we demonstrate that a network-wide synergistic usage of quantum memories distributed in a quantum communication network offers a fundamental advantage. We…
View article: Multicritical Infection Spreading
Multicritical Infection Spreading Open
The contact process is a simple infection spreading model showcasing an out-of-equilibrium phase transition between a macroscopically active and an inactive phase. Such absorbing state phase transitions are often sensitive to the presence …
View article: Activity propagation with Hebbian learning
Activity propagation with Hebbian learning Open
We investigate the impact of Hebbian learning on the contact process, a paradigmatic model for infection spreading, which has been also proposed as a simple model to capture the dynamics of inter-regional brain activity propagation as well…
View article: Social balance in directed networks
Social balance in directed networks Open
Social networks inherently exhibit complex relationships that can be positive or negative, as well as directional. Understanding balance in these networks is crucial for unraveling social dynamics, yet current approaches struggle to incorp…
View article: Universal shape-dependence of quantum entanglement in disordered magnets
Universal shape-dependence of quantum entanglement in disordered magnets Open
Disordered quantum magnets are not only experimentally relevant, but offer efficient computational methodologies to calculate the low energy states as well as various measures of quantum correlations. Here, we present a systematic analysis…
View article: Random transverse and longitudinal field Ising chains
Random transverse and longitudinal field Ising chains Open
Motivated by experimental results on compounds like ${\rm LiHo}_x{\rm Y}_{1-x}{\rm F}_4$, we consider an Ising chain with random bonds in the simultaneous presence of random transverse and longitudinal fields. We study the low-energy prope…
View article: Combined topological and spatial constraints are required to capture the structure of neural connectomes
Combined topological and spatial constraints are required to capture the structure of neural connectomes Open
Volumetric brain reconstructions provide an unprecedented opportunity to gain insights into the complex connectivity patterns of neurons in an increasing number of organisms. Here, we model and quantify the complexity of the resulting neur…
View article: Social balance in directed networks
Social balance in directed networks Open
Social networks inherently exhibit complex relationships that can be positive or negative, as well as directional. Understanding balance in these networks is crucial for unraveling social dynamics, yet traditional theories struggle to inco…
View article: Smoothly vanishing density in the contact process by an interplay of disorder and long-distance dispersal
Smoothly vanishing density in the contact process by an interplay of disorder and long-distance dispersal Open
Realistic modeling of ecological population dynamics requires spatially explicit descriptions that can take into account spatial heterogeneity as well as long-distance dispersal. Here, we present Monte Carlo simulations and numerical renor…
View article: Smoothly vanishing density in the contact process by an interplay of disorder and long-distance dispersal
Smoothly vanishing density in the contact process by an interplay of disorder and long-distance dispersal Open
Realistic modeling of ecological population dynamics requires spatially explicit descriptions that can take into account spatial heterogeneity as well as long-distance dispersal. Here, we present Monte Carlo simulations and numerical renor…
View article: Nematode Extracellular Protein Interactome Expands Connections between Signaling Pathways
Nematode Extracellular Protein Interactome Expands Connections between Signaling Pathways Open
Multicellularity was accompanied by the emergence of new classes of cell surface and secreted proteins. The nematode C. elegans is a favorable model to study cell surface interactomes, given its well-defined and stereotyped cell types and …
View article: Path Percolation in Quantum Communication Networks
Path Percolation in Quantum Communication Networks Open
In a quantum communication network, links represent entanglement between qubits located at different nodes. Even if two nodes are not directly linked by shared entanglement, communication channels can be established between them via quantu…
View article: Unveiling universal aspects of the cellular anatomy of the brain
Unveiling universal aspects of the cellular anatomy of the brain Open
Recent cellular-level volumetric brain reconstructions have revealed high levels of anatomic complexity. Determining which structural aspects of the brain to focus on, especially when comparing with computational models and other organisms…
View article: Combined topological and spatial constraints are required to capture the structure of neural connectomes
Combined topological and spatial constraints are required to capture the structure of neural connectomes Open
Volumetric brain reconstructions provide an unprecedented opportunity to gain insights into the complex connectivity patterns of neurons in an increasing number of organisms. Here, we model and quantify the complexity of the resulting neur…
View article: Proper network randomization is key to assessing social balance
Proper network randomization is key to assessing social balance Open
Social ties, either positive or negative, lead to signed network patterns, the subject of balance theory. For example, strong balance introduces cycles with even numbers of negative edges. The statistical significance of such patterns is r…
View article: Quantum entanglement in the multicritical disordered Ising model
Quantum entanglement in the multicritical disordered Ising model Open
Here, the entanglement entropy is calculated at the quantum multicritical point of the random transverse-field Ising model (RTIM). We use an efficient implementation of the strong disorder renormalization group method in two and three dime…
View article: Utilizing the open-source programming language Python to create interactive Quality Assurance dashboards for diagnostic and screening performance in Cytology
Utilizing the open-source programming language Python to create interactive Quality Assurance dashboards for diagnostic and screening performance in Cytology Open
Python programming proved to be an effective toolkit to ensure high-level data processing in a modular and reproducible way to create a personalized, laboratory specific cytology dashboard.
View article: Quantum Communication Networks Enhanced by Distributed Quantum Memories
Quantum Communication Networks Enhanced by Distributed Quantum Memories Open
Building large-scale quantum communication networks has its unique challenges. Here, we demonstrate that a network-wide synergistic usage of quantum memories distributed in a quantum communication network offers a fundamental advantage. We…
View article: Cluster tomography in percolation
Cluster tomography in percolation Open
In cluster tomography, we propose measuring the number of clusters N intersected by a line segment of length ℓ across a finite sample. As expected, the leading order of N(ℓ) scales as aℓ, where a depends on microscopic details of the syste…
View article: scDrugPrio: A framework for the analysis of single-cell transcriptomics to address multiple problems in precision medicine in immune-mediated inflammatory diseases
scDrugPrio: A framework for the analysis of single-cell transcriptomics to address multiple problems in precision medicine in immune-mediated inflammatory diseases Open
Background Ineffective drug treatment is a major problem for many patients with immune-mediated inflammatory diseases (IMIDs). Important reasons are the lack of systematic solutions for drug prioritisation and repurposing based on characte…
View article: Complex quantum network models from spin clusters
Complex quantum network models from spin clusters Open
In the emerging quantum internet, complex network topology could lead to efficient quantum communication and robustness against failures. However, there are concerns about complexity in quantum communication networks, such as potentially l…
View article: Neuroscience Needs Network Science
Neuroscience Needs Network Science Open
The brain is a complex system comprising a myriad of interacting neurons, posing significant challenges in understanding its structure, function, and dynamics. Network science has emerged as a powerful tool for studying such interconnected…
View article: Cluster tomography in percolation
Cluster tomography in percolation Open
In cluster tomography, we propose measuring the number of clusters $N$ intersected by a line segment of length $\ell$ across a finite sample. As expected, the leading order of $N(\ell)$ scales as $a\ell$, where $a$ depends on microscopic d…
View article: Unveiling universal aspects of the cellular anatomy of the brain
Unveiling universal aspects of the cellular anatomy of the brain Open
Recent cellular-level volumetric brain reconstructions have revealed high levels of anatomic complexity. Determining which structural aspects of the brain to focus on, especially when comparing with computational models and other organisms…
View article: Stability of Rose Window graphs
Stability of Rose Window graphs Open
A graph $Γ$ is said to be stable if for the direct product $Γ\times\mathbf{K}_2$, ${\rm Aut}(Γ\times \mathbf{K}_2)$ is isomorphic to ${\rm Aut}(Γ) \times \mathbb{Z}_2$; otherwise, it is called unstable. An unstable graph is called non-triv…
View article: Proper network randomization is key to assessing social balance
Proper network randomization is key to assessing social balance Open
Studying significant network patterns, known as graphlets (or motifs), has been a popular approach to understand the underlying organizing principles of complex networks. Statistical significance is routinely assessed by comparing to null …
View article: Neuroscience needs Network Science
Neuroscience needs Network Science Open
The brain is a complex system comprising a myriad of interacting elements, posing significant challenges in understanding its structure, function, and dynamics. Network science has emerged as a powerful tool for studying such intricate sys…