Dr Lennart Dabelow

Lennart Dabelow

Lecturer in Applied Mathematics

School of Mathematical Sciences
Queen Mary University of London
ORCID Google Scholar

Research

nonequilibrium statistical mechanics, quantum many-body dynamics, equilibration and thermalization, stochastic thermodynamics, active matter, machine learning for math and physics

Interests

It is a fascinating empirical fact that macroscopic systems often exhibit surprisingly stable and regular behaviour despite the vastly complicated dynamics and interactions of their microscopic constituents. That is to say, it is usually sufficient to know a few macroscopic parameters of a large system to faithfully reproduce a certain behaviour or experiment, even though every repetition will unfold very differently on the microscopic scale.

Lennart’s research aims at understanding this emergence of macroscopic regularity from microscopic complexity: Starting from well-known and experimentally established laws for the microscopic degrees of freedom, he derives effective descriptions for the macroscopically observable phenomenology of systems with a large number of constituents. The systems he is interested in include the quantum realm of atoms and molecules, the stochastic dynamics of micro- to nanometre-sized Brownian particles and active matter, as well as machine-learning models.

Publications

Relevant PublicationPublications of specific relevance to the Centre for Complex Systems

2024

Relevant PublicationDabelow L and Reimann P (2024). Stalled response near thermal equilibrium in periodically driven systems. Nature Communications, Springer Nature vol. 15 (1) 
04-01-2024

2022

Relevant PublicationDabelow L and Ueda M (2022). Three learning stages and accuracy–efficiency tradeoff of restricted Boltzmann machines. Nature Communications, Springer Nature vol. 13 (1) 
17-09-2022
bullet iconDabelow L, Vorndamme P and Reimann P (2022). Thermalization of locally perturbed many-body quantum systems. Physical Review B, American Physical Society (APS) vol. 105 (2) 
01-01-2022

2021

bullet iconDabelow L, Bo S and Eichhorn R (2021). How irreversible are steady-state trajectories of a trapped active particle? Journal of Statistical Mechanics Theory and Experiment, IOP Publishing vol. 2021 (3) 
01-03-2021
bullet iconReimann P and Dabelow L (2021). Refining Deutsch's approach to thermalization. Physical Review E, American Physical Society (APS) vol. 103 (2) 
01-02-2021
bullet iconDabelow L and Eichhorn R (2021). Irreversibility in Active Matter: General Framework for Active Ornstein-Uhlenbeck Particles. Frontiers in Physics, Frontiers vol. 8 
11-01-2021
bullet iconDabelow L and Reimann P (2021). Typical relaxation of perturbed quantum many-body systems. Journal of Statistical Mechanics Theory and Experiment, IOP Publishing vol. 2021 (1) 
01-01-2021

2020

bullet iconDabelow L, Vorndamme P and Reimann P (2020). Modification of quantum many-body relaxation by perturbations exhibiting a banded matrix structure. Physical Review Research, American Physical Society (APS) vol. 2 (3) 
01-08-2020
bullet iconDabelow L and Reimann P (2020). Persistent many-body quantum echoes. Physical Review Research, American Physical Society (APS) vol. 2 (2) 
01-05-2020
bullet iconDabelow L and Reimann P (2020). Predicting Imperfect Echo Dynamics in Many-Body Quantum Systems. Zeitschrift für Naturforschung A, De Gruyter vol. 75 (5), 403-411.  
28-04-2020
Relevant PublicationDabelow L and Reimann P (2020). Relaxation Theory for Perturbed Many-Body Quantum Systems versus Numerics and Experiment. Physical Review Letters, American Physical Society (APS) vol. 124 (12) 
23-03-2020

2019

bullet iconDabelow L, Gies H and Knorr B (2019). Momentum dependence of quantum critical Dirac systems. Physical Review D, American Physical Society (APS) vol. 99 (12) 
15-06-2019
Relevant PublicationManikandan SK, Dabelow L, Eichhorn R and Krishnamurthy S (2019). Efficiency Fluctuations in Microscopic Machines. Physical Review Letters, American Physical Society (APS) vol. 122 (14) 
09-04-2019
bullet iconDabelow L, Bo S and Eichhorn R (2019). Irreversibility in Active Matter Systems: Fluctuation Theorem and Mutual Information. Physical Review X, American Physical Society (APS) vol. 9 (2) 
01-04-2019
Relevant PublicationReimann P and Dabelow L (2019). Typicality of Prethermalization. Physical Review Letters, American Physical Society (APS) vol. 122 (8) 
01-03-2019

2017

Relevant PublicationArgun A, Soni J, Dabelow L, Bo S, Pesce G, Eichhorn R and Volpe G (2017). Experimental realization of a minimal microscopic heat engine. Physical Review E, American Physical Society (APS) vol. 96 (5) 
01-11-2017
bullet iconSoni J, Argun A, Dabelow L, Bo S, Eichhorn R, Pesce G and Volpe G (2017). Brownian Gyrator: An Experimental Realization. Optics in the Life Sciences Congress
01-01-2017