SigmaPhi Prizes

The SigmaPhi Prize for 2020 and SigmaPhi Prize for 2023 have been awarded during SigmaPhi2023 Conference to

Amnon AharonyDavid K. CampbellHartmut Löwen, Chandan Dasgupta, J. Michael Kosterlitz and Jürgen Kurths.

The SigmaPhi Prize was instituted by the SigmaPhi Conference to honor outstanding achievements in Statistical Physics. The Award ceremony takes place  every three years during the opening session of the Conference and each laureate receives a diploma. Previous winners of the SigmaPhi Prize are: Ralf Metzler, David Mukamel, Stefano Ruffo, Giorgio Parisi, Itamar Procaccia and Eugene Stanley.
From left to right: Phanos Argirakis (Chairman of section), Amnon Aharony (SigmaPhi 2020 Prize), David K. Campbel (SigmaPhi 2020 Prize), Hartmut Löwen (SigmaPhi 2020 Prize),  Giorgio Kaniadakis (Chairman of SigmaPhi Conference), Chandan Dasgupta (SigmaPhi 2023 Prize), J. Michael Kosterlitz (SigmaPhi 2023 Prize), Jürgen Kurths (SigmaPhi 2023 Prize), Ralf Metzler (EPS-SNLP Division).
Amnon Aharony: for his seminal contributions to renormalization group studies of universal critical phenomena and of random systems, especially random fields and self-averaging.
David K. Campbell: for clarifying the mechanism by which microscopically reversible, non-integrable dynamical systems either approach statistical equilibrium or remain trapped in non-equilibrium metastable states.
Hartmut Löwen: for his seminal contributions to statistical physics of active matter with fundamental contributions to chirality, nonreciprocal interactions, motility-induced phase separation and active turbulence.
Chandan Dasgupta: For his seminal contributions to the theoretical description of the dynamics of glass-forming liquids in terms of their free-energy landscape and growing length scales.
J. Michael Kosterlitz: For his outstanding theoretical contributions to the transition in the two-dimensional planar rotor model or the superfluid/normal transition in a thin 4He film.
Jürgen Kurths: For his outstanding discovery of fundamental phenomena in complex systems, such as phase synchronization and lag synchronization of chaotic oscillators and coherence resonance, by developing new concepts such as basin stability, recurrence networks and climate networks and constructed long-term forecasts for Monsoon and El Nino.



The SigmaPhi Prize for 2017 has been awarded during SigmaPhi2017 Conference

to Ralf MetzlerDavid Mukamel and Stefano Ruffo.


From left to right: Stefano Ruffo (SigmaPhi 2017 Prize), David Mukamel (SigmaPhi 2017 Prize), Ralf Metzler (SigmaPhi 2017 Prize), Giorgio Kaniadakis (Chairman of SigmaPhi Conference), Cristian Beck (Chair of EPS-SNLP Division)

Ralf Metzler: for his outstanding contributions to the Statistical Physics of Non-equilibrium phenomena and Biological Physics, in particular, for his contributions in the field of anomalous diffusion, non-ergodicity, and single molecular processes

Short biography: Ralf Metzler studied physics at Ulm University and had postdocs at Tel Aviv University and MIT. He has held faculty positions at the Nordic Institute for Theoretical Physics, Copenhagen, University of Ottawa, Technical University of Munich, Tampere University of Technology, and University of Potsdam. He has been developing the fractional Fokker-Planck equation framework, the concept of time averaging of stochastic processes and their ageing and non-ergodic behaviour. Moreover, Ralf has been involved in the study of diffusion-based molecular egulation and first passage processes, as well as simulations of soft matter dynamics with crowding.

David Mukamel: for his outstanding contributions  to the understanding the role of symmetry in equilibrium and out of equilibrium phase transitions

Short biography: David Mukamel studied physics at The Weizmann Institute and was a postdocal fellow at Brookhaven National Lab and Cornell University. He has been holding a faculty position at The Weizmann Institute since 1977. In his studies he combined statistical physics together with group theoretical methods to study collective behavior of  many-body systems in and out of thermal equilibrium. His studies on long-range order and long-range correlations contributed to the understanding of these phenomena in diverse classes of physical systems including magnets, liquid crystals, DNA melting, driven systems and others.

Stefano Ruffo: for his outstanding contributions to the statistical and dynamical behaviour of systems of nonlinear coupled oscillators and with long-range interactions.

Short biography: Stefano Ruffo is the Director of the International School for Advances Studies (SISSA) in Trieste. He has been the Chairman of the Statistical Physics Commission of IUPAP in 2012-2014. He is a member of the Scientific Advisory Board of the E. Schroedinger Institute (2016-18) and of the Board of the Statistical and Nonlinear Physics Division of the EPS (2016-18). Among his scientific achievements one can mention the numerical evidence of the transition to equipartition in the Fermi-Pasta-Ulam (FPU) model, the demonstration of the thermodynamic limit of the Lyapunov spectrum, the introduction of the concept of chaotic breather, the discussion of quasi-stationary states in the Hamiltonian Mean Field Model (HMF) and of ensemble inequivalence in systems with long-range interactions.



SigmaPhi Prizes

The SigmaPhi Prize for 2020 and SigmaPhi Prize for 2023 have been awarded during SigmaPhi2023 Conference to

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SigmaPhi Awards

During the conference, four works selected out of all the oral and poster presentations have been awarded.

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SigmaPhi 2023 Europhysics Conference

The European Physical Society (EPS) has recognized the SigmaPhi 2023 as Europhysics Conference.

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W1. Quantum Physics and Machine Learning

Workshop organized by:F. Caruso

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W2. Data Science and Econophysics

Workshop organized by:P. Argyrakis

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W3. Complex Networks: Hidden Geometry and Dynamics

Workshop organized by:N. Gupte, M.M. Dankulov and B. Tadic

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W4. Climate and Environment

Workshop organized by:- D. Hristopulos - S. Blesic

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W5. Statistical physics of biophysical systems

Workshop organized by: A. Deutsch and B. Hatzikirou

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W6. Statistical physics methods for power grids

Workshop organized by:G. Odor and C. Beck

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W7. Fluctuations in Physics

Workshop organized by:F. Oliveira

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W8. Thermalization of Nonintegrable Many-Body Systems

Workshop organized by:S. Flach

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W9. Fifty years of the renormalization group

Workshop organized by:A. Aharony

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W10. Non-Extensive Statistical Mechanics and Kappa Distributions

Workshop organized by:G. Livadiotis, M. Leubner, P. Yoon and K. Dialynas

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Special Sessions

S1. Spin Glass Theory and Beyond

Special Session organized by E. Marinari and G. Parisi

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S2. Entropies and Correlations in Complex Systems

Special Session organized by V. Ilić, J. Korbel and S. Gupta

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S3. Holographic and other cosmologically relevant entropies

Special Session organized by P. Jizba and G. Lambiase

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S4. Quantum Long-Range Systems

Special Session organized by A. Trombettoni, S. Ruffo and D. Mukamel

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Scientific Sponsors 2023


Statistical and Nonlinear

Physics Division 

Politecnico di Torino




Roma, Italy


Technical University of

Crete Chania, Greece


Aristotele University of

Thessaloniki, Greece


N.C.S.R. Demokritos

Athens, Greece


University of Leuven


University of Cagliari



AFEA Company

Athens, Greece




MDPI publisher




edp Scince publisher



Springer publisher