662 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PotsdamDE34 papers
- University of HelsinkiFI26 papers
- Aalto UniversityFI23 papers
- Tampere UniversityFI18 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Northeastern UniversityUS17 papers
- University of JyväskyläFI14 papers
- Brown UniversityUS13 papers
- Technical University of MunichDE13 papers
- Aarhus UniversityDK12 papers
- Helsinki Institute of PhysicsFI10 papers
- Charles UniversityCZ9 papers
22 papers · 1 filter
The RARE model: a generalized approach to random relaxation processes in disordered systems
Iddo Eliazar, Ralf Metzler
This paper introduces and analyses a general statistical model, termed the RARE model, of random relaxation processes in disordered systems. The model considers excitations, that a…
Area coverage of radial Levy flights with periodic boundary conditions
Mahsa Vahabi, Johannes H. P. Schulz, Babak Shokri +1
We consider the time evolution of two-dimensional Levy flights in a finite area with periodic boundary conditions. From simulations we show that the fractal path dimension d_f and…
Quantification of noise in the bifunctionality-induced post-translational modification
Alok Kumar Maity, Arnab Bandyopadhyay, Sudip Chattopadhyay +4
We present a generic analytical scheme for the quantification of fluctuations due to bifunctionality-induced signal transduction within the members of bacterial two-component syste…
Anomalous diffusion of phospholipids and cholesterols in a lipid bilayer and its origins
Jae-Hyung Jeon, Hector Martinez-Seara Monne, Matti Javanainen +1
Combining extensive molecular dynamics simulations of lipid bilayer systems of varying chemical composition with single-trajectory analyses we systematically elucidate the stochast…
Finite-time effects and ultraweak ergodicity breaking in superdiffusive dynamics
Aljaz Godec, Ralf Metzler
We study the ergodic properties of superdiffusive, spatiotemporally coupled Levy walk processes. For trajectories of finite duration, we reveal a distinct scatter of the scaling ex…
Analysis of the rotation period of asteroids (1865) Cerberus, (2100) Ra-Shalom, and (3103) Eger - search for the YORP effect
J. Durech, D. Vokrouhlicky, A. R. Baransky +28
The spin state of small asteroids can change on a long timescale by the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect, the net torque that arises from anisotropically scatter…
Fractal Dynamics in Chaotic Quantum Transport
Ville Kotimaki, Esa Rasanen, Holger Hennig +1
Despite several experiments on chaotic quantum transport in two-dimensional systems such as semiconductor quantum dots, corresponding quantum simulations within a real-space model…
Many-electron transport in Aharonov-Bohm interferometers: Time-dependent density-functional study
A. Salman, V. Kotimaki, A. Siddiki +1
We apply time-dependent density-functional theory to study many-electron transport in Aharonov-Bohm interferometers in a non-equilibrium situation. The conductance properties in th…
Chaotic properties of Coulomb-interacting circular billiards
J. Solanpaa, J. Nokelainen, P. J. J. Luukko +1
We apply a molecular dynamics scheme to analyze classically chaotic properties of a two-dimensional circular billiard system containing two Coulomb-interacting electrons. As such,…
A general framework for island systems
Stephan Foldes, Eszter K. Horváth, Sándor Radeleczki +1
The notion of an island defined on a rectangular board is an elementary combinatorial concept that occurred first in [G. Czédli, The number of rectangular islands by means of distr…
Stock Price Dynamics and Option Valuations under Volatility Feedback Effect
Juho Kanniainen, Robert Piché
According to the volatility feedback effect, an unexpected increase in squared volatility leads to an immediate decline in the price-dividend ratio. In this paper, we consider the…
Scaling in the correlation energies of two-dimensional artificial atoms
Alexander Odriazola, Mikko M Ervasti, Ilja Makkonen +4
We find an unexpected scaling in the correlation energy of artificial atoms, i.e., harmonically confined two-dimensional quantum dots. The scaling relation is found through extensi…
Few-body reference data for multicomponent formalisms: Light nuclei molecules
Ilkka Kylänpää, Tapio T. Rantala, David M. Ceperley
We present full quantum statistical energetics of some electron-light nuclei systems. This is accomplished with the path integral Monte Carlo method. The effects on energetics aris…
Performance Analysis of CSMA/CA Protocols with Multi-packet Transmission
Boris Bellalta, Azadeh Faridi, Dirk Staehle +3
Wireless objects equipped with multiple antennas are able to simultaneously transmit multiple packets by exploiting the channel's spatial dimensions. In this paper, we study the be…
First passages in bounded domains: When is the mean first passage time meaningful?
Thiago G. Mattos, Carlos Mejía-Monasterio, Ralf Metzler +1
We study the first passage statistics to adsorbing boundaries of a Brownian motion in bounded two-dimensional domains of different shapes and configurations of the adsorbing and re…
Near-infrared spectroscopy of stellar populations in nearby spiral galaxies
J. K. Kotilainen, T. Hyvonen, J. Reunanen +1
We present high spatial resolution, medium spectral resolution near-infrared (NIR) H- and K-band long-slit spectroscopy for a sample of 29 nearby (z < 0.01) inactive spiral galaxie…
Bulk-mediated diffusion on a planar surface: full solution
Aleksei V. Chechkin, Irwin M. Zaid, Michael A. Lomholt +2
We consider the effective surface motion of a particle that intermittently unbinds from a planar surface and performs bulk excursions. Based on a random walk approach we derive the…
How a finite potential barrier decreases the mean first passage time
Vladimir V. Palyulin, Ralf Metzler
We consider the mean first passage time of a random walker moving in a potential landscape on a finite interval, starting and end points being at different potentials. From analyti…
Inequivalence of time and ensemble averages in ergodic systems: exponential versus power-law relaxation in confinement
Jae-Hyung Jeon, Ralf Metzler
Single particle tracking has become a standard tool to investigate diffusive properties, especially in small systems such as biological cells. Usually the resulting time series are…
Quantum biology on the edge of quantum chaos
Gabor Vattay, Stuart Kauffman, Samuli Niiranen
We give a new explanation for why some biological systems can stay quantum coherent for long times at room temperatures, one of the fundamental puzzles of quantum biology. We show…
Synthesis of titanate nanostructures using amorphous precursor material and their adsorption/photocatalytic properties
E. K. Ylhainen, M. R. Nunes, A. J. Silvestre +1
This paper reports on a new and swift hydrothermal chemical route to prepare titanate nanostructures (TNS) avoiding the use of crystalline TiO2 as starting material. The synthesis…
Optimal computation of brightness integrals parametrized on the unit sphere
Mikko Kaasalainen, Xiaoping Lu, Anssi-Ville Vänttinen
We compare various approaches to find the most efficient method for the practical computation of the lightcurves (integrated brightnesses) of irregularly shaped bodies such as aste…