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Photo of Prof Jan Sieber

Prof Jan Sieber

Associate Professor


Telephone: 01392 723973

Extension: (Streatham) 3973

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Member of Centre for Systems, Dynamics and Control

orcid: 0000-0002-9558-1324

Current and former PhD students

  • Paul D. Ritchie (started 2013, graduated 2016) Noise- and rate-induced tipping
  • Courtney Quinn (started 2015, graduated 2019) Delay effects and critical transitions in climate models, part of the EU Innovative Training Network CRITICS
  • Robert E. Carroll (started 2018) Tracking unstable phenomena in complex simulations
  • Asim Alawfi started 2020: Applications of delay differential equations
  • co-supervising Zhi Zhang, started 2017, main supervisor Yang Liu
  • co-supervising Thoraya Alharti, started 2018, main supervisor Peter Ashwin
  • co-supervising Gaby Wang, started 2019, main supervisor Krasimira Tsaneva-Atanasova


for PhD projects: see Centre for Systems, Dynamics and Control pages. Funding: once per year, the EPSRC funds PhD projects as part of its program, see information pages here and here

Acknowledgment of current and past public support

  • EU Project TiPES, Tipping Points in the Earth System (European Union’s Horizon 2020 research and innovation programme under grant agreement number 820970)
  • EPSRC Fellowship EP/N023544/1 Exploring instability in complex systems - simulations in no-man's land (2017-2021)
  • EU Innovative Training Network CRITICS (European Union's Horizon 2020 research and innovation programme under Grant Agreement number 643073, 2015-2018)
  • EPSRC Grant EP/J010820/1 Control-based bifurcation analysis for experiments (2012-2014)

References for Outreach activities and Open-day taster lecture

References and computations: find the squares for your own large prime

Simple programs for coloring networks

Sudoku solving, an application of network coloring

Research interests

Climate tipping (papers)

  • Theme Issue of Philosophical Transactions of the Royal Society Series A on Influence of Nonlinearity and Randomness in Climate Prediction, (Link to Preprint collection)
  • Talks: Newton Institute (video, Cambridge 2010, go one level up for more talks), ICIAM (slides only, Vancouver 2011),

Continuation for experiments (papers)

  • Introductory Physical Review Focus article by Mike Wofsey covering the first test on real pendulum experiment (also featuring small videos).
  • The basic mathematics behind it explained for a simple mechanical experiment (with animation but only based on numerical simulations).
  • The method has been used in a more advanced experiment with an energy harvesting mechanical oscillator recently by David Barton.

Delay-differential equations (papers)

Bifurcations of smooth and piecewise smooth systems (papers)

Nonlinear dynamics in semiconductor lasers (papers)

subject of my PhD thesis, see sebpage for the research group Laser dynamics at the WIAS.


  • Numerics of differential-algebraic equations (subject of my master thesis)
Teaching certificate
  • ASPIRE Fellow of the Higher Education Academy