Studies

2001 - PhD in Physics of Critical phenomena with application to high energies. Department of Physics, University of Athens.

1998 - MSc in Nuclear and Particle Physics. Department of Physics, University of Athens.

1981 - Department of Physics of the Aristotle University of Thessaloniki.

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Research Interests

• Field Theories (Classical-Quantum)
• Complex systems, Critical phenomena and phase transitions
• Non-linear dynamics and Chaos
• Signal time-series analysis using linear-nonlinear methods with various applications, such as pre-seismic process, biological signals, electronic physics, stock market, social data,....
• Mechanisms of Self-organization
• Simulations Biological neural networks
• Physics Popularization
  

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Representative Publications

1. “Fractals at T=Tc due to instanton –like configuration” N. Antoniou, Y. Contoyiannis, F. Diakonos and C. Papadopoulos. Phys. Rev. Lett 81, 4289 (1998). (impact Factor: 8.462).
2. “Criticality and Intermittency in the order parameter space”, Y.Contoyiannis and F. Diakonos. Phys.Lett. A 268(2000) 286-292 (impact Factor: 1.772)
3. “Intermittent dynamics of critical fluctuations” Y. Contoyiannis, F. Diakonos and A. Malakis . Phys.Rev. Lett. 89, 35701(2002). (impact Factor: 8.462)
4. “Criticality in the relaxation phase of the spontaneous contracting atria isolated from the heart of the frog (Rana ridibunda)” Y. Contoyiannis, F. Diakonos, C. Papaefthimiou and G. Theophilidis. Phys. Rev. Lett. 93, 098101 (2004) (impact Factor: 8.462)
5. “Monitoring of a preseismic phase from its electromagnetic precursors”. Y. Contoyiannis, P. Kapiris and K. Eftaxias. Phys. Rev. E 71, 1(2005). (impact Factor: 2.336)
6. “Abrupt transition in a sandpile model” Y.F. Contoyiannis and F.K. Diakonos. Phys.Rev. E 73, 031303 (2006). (impact Factor: 2.336)
7. “Unimodal maps and order papameter fluctuations in the critical region” Y.F. Contoyiannis and F.K. Diakonos . Phys. Rev. E 76,031138 (2007). (impact Factor: 2.336)
8. “Unfolding the procedure of characterizing recorded ultra low frequency, kHz and MHz electromagnetic anomalies prior to the L’Aquila earthquake as pre-seismic ones-Part 2” K.Eftaxias, L.Athanasopoulou, G. Balasis, M. kalimeri, S. Nikolopoulos, Y. Contoyiannis, J. Kopanas, G. Antonopoulos, and C. Nomicos, Natural Hazards and Earth Systerm Sciences. 10(2010), 275-294. (impact Factor: 2.51)
9. “Recent Field Observations Indicating an Earth System in Critical Condition Before the Occurrence of a Significant Earthquake” S.M.Potirakis, Y.Contoyiannis, K.Eftaxias, G. Koulouras, and C. Nomicos. IEEE Geoscience and remote sensing letters, vol:12, issue:3, page:631-635, 25-09-2014. (impact Factor: 2.761)
10. “Tricritical crossover in earthquake preparation by analyzing preseismic electromagnetic emissions” Y. F Contoyiannis, S.M Potiraks, L. Contoyianni, K. Eftaxias. Journal of Geodynamics, (2015) pp40-54. (impact Factor: 1.806)
11. “Intermittency-induced criticality in a resistor-inductor-diode circuit” Stelios M. Potirakis,,Yiannis Contoyiannis, Fotios K. Diakonos, and Michael P. Hanias. Physical Review E 95, 042206 (2017). (impact Factor: 2.366)
12. “Observation of intermittency-induced critical dynamics in geomagnetic field time series prior to the intense magnetic storms of March, June and December 2015” G. Balasis, I. A. Daglis, Y. Contoyiannis, S. M. Potirakis, C. Papadimitriou, N. S. Melis, O. Giannakis, A. Papaioannou, A. Anastasiadis, C. Kontoes, Journal of Geophysical Research: Space Physics, 123. (2018), 1-20, doi: 10.1002/2017JA025131 (impact factor 3.44).
13. “ Traits of criticality in membrane potential fluctuations of pyramidal neurons in the CA1 region of rat hippocampus “ Efstratios K. Kosmidis, Yiannis F. Contoyiannis , Costas Papatheodoropoulos ,Fotios K. Diakonos . European Journal of Neuroscience , https://doi.org/10.1111/ejn.14117 (2018). (impact factor 2.832)
14. “Signatures of the symmetry breaking phenomenon in pre- seismic electromagnetic emissions” Yiannis Contoyiannis, Stelios M. Potirakis . JSTAT_027P_0618 (2018) (impact factor 2.404)
15. “Lévy and Gauss statistics in the preparation of an earthquake” SteliosM.Potirakis,YiannisContoyiannis,KonstantinosEftaxias , Physica A: Statistical Mechanics and its Applications. Pg 121360, 2019/5/8. (impact Factor: 2.243)

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Undergraduate Courses

• Electronic Physics Lab and Automated Control Systems Lab.
• Physics Lab I
  

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Postgraduate Courses 

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Curriculum Vitae