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
34 papers · 1 filter
Evaluating IEEE 802.15.4 for Cyber-Physical Systems
Feng Xia, Alexey Vinel, Ruixia Gao +2
With rapid advancements in sensing, networking, and computing technologies, recent years have witnessed the emergence of cyber-physical systems (CPS) in a broad range of applicatio…
The high-energy anomaly in ARPES spectra of the cuprates-many body or matrix element effect?
E. D. L. Rienks, M. Ärrälä, M. Lindroos +5
We used polarization-dependent angle-resolved photoemission spectroscopy (ARPES) to study the high-energy anomaly (HEA) in the dispersion of Nd2-xCexCuO4, (x=0.123). We have found…
Molecular motors transporting cargos in viscoelastic cytosol: how to beat subdiffusion with a power stroke?
Igor Goychuk, Vasyl O. Kharchenko, Ralf Metzler
Anomalously slow passive diffusion, , with , of larger tracers such as messenger RNA and endogenous submicron granules in the cytoplasm of…
Advanced Antenna Techniques and High Order Sectorization with Novel Network Tessellation for Enhancing Macro Cell Capacity in DC-HSDPA Network
Muhammad Usman Sheikh, Jukka Lempiainen
Mobile operators commonly use macro cells with traditional wide beam antennas for wider coverage in the cell, but future capacity demands cannot be achieved by using them only. It…
Giant thermovoltage in single InAs-nanowire field-effect transistors
Stefano Roddaro, Daniele Ercolani, Mian Akif Safeen +5
Millivolt range thermovoltage is demonstrated in single InAs-nanowire based field effect transistors. Thanks to a buried heating scheme, we drive both a large thermal bias DT>10K a…
Diffusion of finite-size particles in channels with random walls
Max Bauer, Aljaz Godec, Ralf Metzler
Diffusion of chemicals or tracer molecules through complex systems containing irregularly shaped channels is important in many applications. Most theoretical studies based on the f…
Effect of Carouseling on Angular Rate Sensor Error Processes
Jussi Collin, Martti Kirkko-Jaakkola, Jarmo Takala
Carouseling is an efficient method to mitigate the measurement errors of inertial sensors, particularly MEMS gyroscopes. In this article, the effect of carouseling on the most sign…
Polynomial Stability of Semigroups Generated by Operator Matrices
Lassi Paunonen
In this paper we study the stability properties of strongly continuous semigroups generated by block operator matrices. We consider triangular and full operator matrices whose diag…
Aging dynamics in interacting many-body systems
Lloyd P. Sanders, Michael A. Lomholt, Ludvig Lizana +3
Low-dimensional, complex systems are often characterized by logarithmically slow dynamics. We study the generic motion of a labeled particle in an ensemble of identical diffusing p…
Particle invasion, survival, and non-ergodicity in 2D diffusion processes with space-dependent diffusivity
Andrey G. Cherstvy, Aleksei V. Chechkin, Ralf Metzler
We study the thermal Markovian diffusion of tracer particles in a 2D medium with spatially-varying diffusivity , mimicking recently measured, heterogeneous maps of the appare…
All Linear-Time Congruences for Familiar Operators
Antti Valmari
The detailed behaviour of a system is often represented as a labelled transition system (LTS) and the abstract behaviour as a stuttering-insensitive semantic congruence. Numerous c…
Speeding up the first-passage for subdiffusion by introducing a finite potential barrier
Vladimir Palyulin, Ralf Metzler
We show that for a subdiffusive continuous time random walk with scale-free waiting time distribution the first-passage dynamics on a finite interval can be optimised by introducti…
Imaginary time propagation code for large-scale two-dimensional eigenvalue problems in magnetic fields
P. J. J. Luukko, E. Räsänen
We present a code for solving the single-particle, time-independent Schrödinger equation in two dimensions. Our program utilizes the imaginary time propagation (ITP) algorithm, and…
Stochastic Optimization Based Study of Dimerization Kinetics
Srijeeta Talukder, Shrabani Sen, Ralf Metzler +2
We investigate the potential of numerical algorithms to decipher the kinetic parameters involved in multi-step chemical reactions. To this end we study a dimerization kinetics of p…
Sensing viruses by mechanical tension of DNA in responsive hydrogels
Jaeoh Shin, Andrey G. Cherstvy, Ralf Metzler
The rapid worldwide spread of severe viral infections, often involving novel modifications of viruses, poses major challenges to our health care systems. This means that tools that…
Coexistence and efficiency of normal and anomalous transport by molecular motors in living cells
Igor Goychuk, Vasyl O. Kharchenko, R. Metzler
Recent experiments reveal both passive subdiffusion of various nanoparticles and anomalous active transport of such particles by molecular motors in the molecularly crowded environ…
Optimal control of strong-field ionization with time-dependent density-functional theory
M. Hellgren, E. Rasanen, E. K. U. Gross
We show that quantum optimal control theory (OCT) and time-dependent density-functional theory (TDDFT) can be combined to provide realistic femtosecond laser pulses for an enhanced…
Correlated continuous-time random walks: combining scale-invariance with long-range memory for spatial and temporal dynamics
Johannes HP Schulz, Aleksei V Chechkin, Ralf Metzler
Standard continuous time random walk (CTRW) models are renewal processes in the sense that at each jump a new, independent pair of jump length and waiting time are chosen. Globally…
Ripple field losses in DC biased superconductors: simulations and comparison with measurements
V. Lahtinen, E. Pardo, J. Šouc +2
For example in some supercondcuting generators, motors and power transmission cables the superconductor experiences a changing magnetic field in a DC background. Simulating the los…
Influence of the voltage taps position on the self-field DC and AC transport characterization of HTS superconducting tapes
M. Vojenciak, F. Grilli, A. Stenvall +2
The current-voltage (I-V) curve is the basic characteristic of a superconducting wire or tape. Measuring I-V curves is generally problematic when samples have poor stabilization. S…
Population splitting, trapping, and non-ergodicity in heterogeneous diffusion processes
Andrey G. Cherstvy, Ralf Metzler
We consider diffusion processes with a spatially varying diffusivity giving rise to anomalous diffusion. Such heterogeneous diffusion processes are analysed for the cases of expone…
Transient ageing in fractional Brownian and Langevin equation motion
Jochen Kursawe, Johannes Schulz, Ralf Metzler
Stochastic processes driven by stationary fractional Gaussian noise, that is, fractional Brownian motion and fractional Langevin equation motion, are usually considered to be ergod…
Interval decomposition lattices are balanced
S. Foldes, S. Radeleczki
Intervals in binary or n-ary relations or other discrete structures generalize the concept of interval in a linearly ordered set. Join-irreducible partitions into intervals are cha…
Computation of Losses in HTS Under the Action of Varying Magnetic Fields and Currents
Francesco Grilli, Enric Pardo, Antti Stenvall +3
Numerical modeling of superconductors is widely recognized as a powerful tool for interpreting experimental results, understanding physical mechanisms and predicting the performanc…