Overview
My main research interests are in the field of random and nonautonomous dynamical systems.
I was awarded my PhD by Imperial College London in 2016 (supervised by Martin Rasmussen and Jeroen Lamb). The topic of my PhD was synchronisation by noise, understood as stability of trajectories of a random dynamical system (RDS); the main areas addressed were (a) dynamical properties of measurable RDS preserved under Borel-measurable isomorphism of the state space, and (b) for continuous RDS, abstract topological conditions under which local-scale stability of trajectories implies global-scale stability of trajectories.
My first postdoctoral position was an EPSRC Doctoral Prize Fellowship at Imperial College London, 2015-2016. I then had a postdoctoral position in Bielefeld, 2016-2017, and then a postdoctoral position in the physics department (Nonlinear & Biomedical Physics group) at Lancaster University, 2017-2019. I started my current position at the University of Exeter in September 2019, on the Horizon 2020 project Tipping Points in the Earth System ("TiPES").
My research topics include:
- synchronisation by noise
- measurable dynamics of random dynamical systems
- topological conjugacy of random dynamical systems
- synchronisation by finite-time slow-timescale forcing
- wavelet bispectral analysis
- ergodic-theoretic properties of asymptotically autonomous dynamical systems, and application to tipping points in the climate.
Publications
Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.
| 2024 | 2023 | 2021 | 2020 | 2019 | 2018 | 2017 |
2024
- Newman J, Scott JP, Adams JR, Stefanovska A. (2024) Intermittent phase dynamics of non-autonomous oscillators through time-varying phase, Physica D Nonlinear Phenomena, volume 461, DOI:10.1016/j.physd.2024.134108.
2023
- Rowland Adams J, Newman J, Stefanovska A. (2023) Distinguishing between deterministic oscillations and noise, The European Physical Journal Special Topics, volume 232, no. 20-22, pages 3435-3457, DOI:10.1140/epjs/s11734-023-00986-3.
- Newman J, Ashwin P. (2023) Natural measures of asymptotically autonomous systems, DOI:10.5194/egusphere-egu23-17454. [PDF]
2021
- Newman J, Lucas M, Stefanovska A. (2021) Stabilization of cyclic processes by slowly varying forcing, Chaos, volume 31, no. 12, DOI:10.1063/5.0066641. [PDF]
- Newman J, Pidde A, Stefanovska A. (2021) Defining the wavelet bispectrum, Applied and Computational Harmonic Analysis, volume 51, pages 171-224, DOI:10.1016/j.acha.2020.10.005.
- Lucas M, Newman JMI, Stefanovska A. (2021) Synchronisation and Non-autonomicity, Understanding Complex Systems, 85-110, DOI:10.1007/978-3-030-59805-1_6.
- Newman JMI, Lucas M, Stefanovska A. (2021) Non-asymptotic-time Dynamics, Understanding Complex Systems, 111-129, DOI:10.1007/978-3-030-59805-1_7.
- Ashwin P, Newman J. (2021) Physical invariant measures and tipping probabilities for chaotic attractors of asymptotically autonomous systems, European Physical Journal: Special Topics, volume 230, no. 16-17, pages 3235-3248, DOI:10.1140/epjs/s11734-021-00114-z.
- Newman J, Ashwin P. (2021) Re-thinking noise-induced tipping, DOI:10.5194/egusphere-egu21-5918. [PDF]
2020
- Newman J. (2020) Synchronisation of almost all trajectories of a random dynamical system, Discrete & Continuous Dynamical Systems - A, volume 40, no. 7, pages 4163-4177, DOI:10.3934/dcds.2020176. [PDF]
2019
- Hagos Z, Stankovski T, Newman J, Pereira T, McClintock PVE, Stefanovska A. (2019) Synchronization transitions caused by time-varying coupling functions, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 377, no. 2160, DOI:10.1098/rsta.2019.0275.
2018
- Lucas M, Newman J, Stefanovska A. (2018) Stabilisation of dynamics of oscillatory systems by non-autonomous perturbation, DOI:10.48550/arxiv.1803.11392.
- Lucas M, Newman J, Stefanovska A. (2018) Stabilization of dynamics of oscillatory systems by nonautonomous perturbation, Physical Review E, volume 97, no. 4, DOI:10.1103/PhysRevE.97.042209.
2017
- NEWMAN J. (2017) Necessary and sufficient conditions for stable synchronization in random dynamical systems, Ergodic Theory and Dynamical Systems, volume 38, no. 5, pages 1857-1875, DOI:10.1017/etds.2016.109. [PDF]
