165 citations · 1.1k across the 38 of their papers we have counts for
38 papers
Hyperscaling of spatial fluctuations constrains the development of urban populations
Wout Merbis, Fernando A. N. Santos, Jay Armas +2
Urban populations exhibit fractal organization and systematic scaling regularities, yet the scaling exponents reported across cities vary substantially, challenging existing theory…
Symmetric preferences, asymmetric outcomes: Tipping dynamics in an open-city segregation model
Fabio van Dissel, Tuan Minh Pham, Wout Merbis
Schelling's model of segregation demonstrates that even in the absence of social or governmental interventions, individuals with mild in-group preferences can self-organize into st…
Effective dimensional reduction of complex systems based on tensor networks
Wout Merbis, Madelon Geurts, Clélia de Mulatier +1
The exact treatment of Markovian models of complex systems requires knowledge of probability distributions exponentially large in the number of components . Mean-field approxima…
Field theories and quantum methods for stochastic reaction-diffusion systems
Mauricio J. del Razo, Tommaso Lamma, Wout Merbis
Complex systems are composed of many particles or agents that move and interact with one another. The underlying mathematical framework to model many of these systems must incorpor…
Operator entanglement growth quantifies complexity of cellular automata
Wout Merbis, Calvin Bakker
Cellular automata (CA) exemplify systems where simple local interaction rules can lead to intricate and complex emergent phenomena at large scales. The various types of dynamical b…
Risk aversion can promote cooperation
Jay Armas, Wout Merbis, Janusz Meylahn +2
Cooperative dynamics are central to our understanding of many phenomena in living and complex systems. However, we lack a universal mechanism to explain the emergence of cooperatio…
Efficient simulations of epidemic models with tensor networks: application to the one-dimensional SIS model
Wout Merbis, Clélia de Mulatier, Philippe Corboz
The contact process is an emblematic model of a non-equilibrium system, containing a phase transition between inactive and active dynamical regimes. In the epidemiological context,…
Complex information dynamics of epidemic spreading in low-dimensional networks
Wout Merbis, Manlio de Domenico
The statistical field theory of information dynamics on complex networks concerns the dynamical evolution of large classes of models of complex systems. Previous work has focused o…
Emergent information dynamics in many-body interconnected systems
Wout Merbis, Manlio de Domenico
The information implicitly represented in the state of physical systems allows one to analyze them with analytical techniques from statistical mechanics and information theory. In…
Asymptotic dynamics of three dimensional supergravity and higher spin gravity revisited
Wout Merbis, Turmoli Neogi, Arash Ranjbar
We reconsider the Hamiltonian reduction of the action for three dimensional AdS supergravity and higher spin AdS gravity in the Chern-Simons formulation under asymptotically…
Logistic growth on networks: exact solutions for the SI model
Wout Merbis, Ivano Lodato
The SI model is the most basic of all compartmental models used to describe the spreading of information through a population. Despite its apparent simplicity, the analytic solutio…
Exact epidemic models from a tensor product formulation
Wout Merbis
A general framework for obtaining exact transition rate matrices for stochastic systems on networks is presented and applied to many well-known compartmental models of epidemiology…
Warped Flatland
Stéphane Detournay, Wout Merbis, Gim Seng Ng +1
We study warped flat geometries in three-dimensional topologically massive gravity. They are quotients of global warped flat spacetime, whose isometries are given by the 2-dimensio…
Asymptotic dynamics of AdS gravity with two asymptotic regions
Marc Henneaux, Wout Merbis, Arash Ranjbar
The asymptotic dynamics of AdS gravity with two asymptotically anti-de Sitter regions is investigated, paying due attention to the zero modes, i.e., holonomies along non-contra…
Geometric actions and flat space holography
Wout Merbis, Max Riegler
In this paper we perform the Hamiltonian reduction of the action for three-dimensional Einstein gravity with vanishing cosmological constant using the Chern-Simons formulation and…
On asymptotic charges in 3D gravity
Eric A. Bergshoeff, Wout Merbis, Paul K. Townsend
A variant of the ADT method for the determination of gravitational charges as integrals at infinity is applied to "Chern-Simons-like" theories of 3D gravity, and the result is used…
Near horizon dynamics of three dimensional black holes
Daniel Grumiller, Wout Merbis
We perform the Hamiltonian reduction of three dimensional Einstein gravity with negative cosmological constant under constraints imposed by near horizon boundary conditions. The th…
On-shell versus Off-shell Equivalence in 3D Gravity
Eric Bergshoeff, Wout Merbis, Paul Townsend
A given field theory action determines a set of field equations but other actions may yield equivalent field equations; if so they are on-shell equivalent. They may also be off-she…
Supersymmetric Galilean conformal blocks
Ivano Lodato, Wout Merbis, Zodinmawia
We set up the bootstrap procedure for supersymmetric Galilean Conformal (SGC) field theories in two dimensions by constructing the SGC blocks in the and two possibl…
Soft hairy warped black hole entropy
Daniel Grumiller, Philip Hacker, Wout Merbis
We reconsider warped black hole solutions in topologically massive gravity and find novel boundary conditions that allow for soft hairy excitations on the horizon. To compute the a…
New entropy formula for Kerr black holes
Hernan Gonzalez, Daniel Grumiller, Wout Merbis +1
We introduce a new entropy formula for Kerr black holes inspired by recent results for 3-dimensional black holes and cosmologies with soft Heisenberg hair. We show that also Kerr-T…
Most general flat space boundary conditions in three-dimensional Einstein gravity
Daniel Grumiller, Wout Merbis, Max Riegler
We consider the most general asymptotically flat boundary conditions in three-dimensional Einstein gravity in the sense that we allow for the maximal number of independent free fun…
Soft hairy horizons in three spacetime dimensions
Hamid Afshar, Daniel Grumiller, Wout Merbis +3
We discuss some aspects of soft hairy black holes and a new kind of "soft hairy cosmologies", including a detailed derivation of the metric formulation, results on flat space, and…
Super-BMS algebras from flat supergravities
Ivano Lodato, Wout Merbis
We consider two possible flat space limits of three dimensional AdS supergravity. They differ by how the supercharges are scaled with the AdS radius : t…