Results 111 to 120 of about 283,223 (248)

Stochastic Wilson–Cowan models of neuronal network dynamics with memory and delay

open access: yesNew Journal of Physics, 2015
We consider a simple Markovian class of the stochastic Wilson–Cowan type models of neuronal network dynamics, which incorporates stochastic delay caused by the existence of a refractory period of neurons.
Igor Goychuk, Andriy Goychuk
doaj   +1 more source

Profiling the sleep architecture of ageing adults using a seven‐state continuous‐time Markov model

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is a complex biological process regulated by networks of neurons and environmental factors. As one falls asleep, neurotransmitters from sleep–wake regulating neurones work in synergy to control the switching of different sleep states throughout the night. As sleep disorders or underlying neuropathology can manifest as irregular switching,
Jonathon Jacobs   +3 more
wiley   +1 more source

Non-Markovian quantum input-output networks

open access: yes, 2013
Quantum input-output response analysis is a useful method for modeling the dynamics of complex quantum networks, such as those for communication or quantum control via cascade connections.
Nori, Franco   +4 more
core  

Memory Corrections to Markovian Langevin Dynamics

open access: yesEntropy
Analysis of non-Markovian systems and memory-induced phenomena poses an everlasting challenge in the realm of physics. As a paradigmatic example, we consider a classical Brownian particle of mass M subjected to an external force and exposed to correlated
Mateusz Wiśniewski   +2 more
doaj   +1 more source

Rate processes with non-Markovian dynamical disorder [PDF]

open access: yesThe Journal of Chemical Physics, 2005
Rate processes with dynamical disorder are investigated within a simple framework provided by unidirectional electron transfer (ET) with fluctuating transfer rate. The rate fluctuations are assumed to be described by a non-Markovian stochastic jump process which reflects conformational dynamics of an electron transferring donor-acceptor molecular ...
openaire   +3 more sources

Autoregressive Hypergraph

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT Traditional graph representations are insufficient for modelling real‐world phenomena involving multi‐entity interactions, such as collaborative projects or protein complexes, necessitating the use of hypergraphs. While hypergraphs preserve the intrinsic nature of such complex relationships, existing models often overlook temporal evolution in
Xianghe Zhu, Qiwei Yao
wiley   +1 more source

Interplay between external driving, dissipation and collective effects in the Markovian and non-Markovian regimes [PDF]

open access: yesQuantum
Understanding how external driving and dissipation jointly influence the dynamics of open quantum systems is essential for advancing the study of non-equilibrium quantum phenomena and developing quantum technologies. The present study addresses the issue
Roie Dann
doaj   +1 more source

Multiple Chains Markov Switching Vector Autoregression

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT Both the U.S. stock and bond returns exhibit distinct Markovian regimes. However, because these regimes display limited coherence, conventional models typically require highly parameterized systems to adequately capture their joint distribution.
Leopoldo Catania
wiley   +1 more source

Non-Markovian epidemic dynamics on networks

open access: yes, 2018
The use of networks to model the spread of epidemics through structured populations is widespread. However, epidemics on networks lead to intractable exact systems with the need to coarse grain and focus on some average quantities.
Neil Sherborne (4463599)
core   +1 more source

Dynamical decoupling-induced renormalization of non-Markovian dynamics

open access: yesPhysical Review A, 2007
We develop a framework to study the dynamics of a system under dynamical decoupling. We investigate several scenarios and assess the efficiency. We find that the efficiency critically depends on the spectral density of the bath and the envelope of the decoupling pulses.
openaire   +2 more sources

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