EPJ

About EPJ

The European Physical Journal (EPJ) is a series of peer-reviewed journals covering the whole spectrum of physics and related interdisciplinary subjects. EPJ is committed to high scientific quality in publishing and is indexed in all main citation databases.

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Latest news

EPJ E Highlight - Preparation, not confinement alone, needed to explain how polymer films behave

Details: Published on 10 July 2026

A new review revisits Reiter and de Gennes' 20-year-old theory of conformational memory in polymer films, and asks what it will take to turn preparation into a tool for designing programmable materials

When polymers are squeezed into extremely thin films, a rich interplay between their geometry, fluctuations and interfaces, can create novel behaviour, named a ‘confinement effect’. Yet some behaviour in these films can't be fully explained by confinement alone. In 2001, physicists Günter Reiter and Pierre-Gilles de Gennes proposed an alternative explanation: that a polymer's preparation stage could imprint the material with a memory of its previous states. But despite promising experimental progress in the time since, several fundamental questions remain about the effect.

Through a new review published in EPJ E, Sivasurender Chandran at the Indian Institute of Technology Kanpur revisits Reiter and de Gennes' original work, tracing key experimental advances since their theory emerged. His insights could help researchers answer long-standing questions about polymer films – including the possibility of programming their mechanical responses.

EPJ Plus Highlight - Ultra-precise torsion pendulum affected by thermal lag effect

Details: Published on 10 July 2026

A torsion pendulum's equilibrium position lags hours behind ambient fluctuations in temperature – correcting for the effect could help researchers to detect gravitational waves from space

If carried out in space, many physicists are confident that torsion pendulum experiments could be precise enough to detect passing gravitational waves. Yet before this can happen, it will be crucial to understand exactly how the pendulum's equilibrium position is affected by inevitable fluctuations in the surrounding temperature.

Through a new experiment detailed in EPJ Plus, researchers led by Qi Liu at Sun Yat-sen University in China have determined that the equilibrium position of a torsion pendulum significantly lags behind these temperature fluctuations. By accounting for this effect in their correction techniques, physicists could come a step closer to measuring gravitational waves using this remarkably simple setup.

EPJD : Robert Bennett

Details: Published on 08 July 2026

The European Physical Journal D (EPJ D) is glad to announce that Dr Robert Bennett (University of Glasgow, United Kingdom) has been appointed as one of the Editors-in-Chief for the journal starting on June 1^st, 2026.

Dr Robert Bennett’s experience and standing in the field will be invaluable to lead and develop the journal together with the other two Editors-in-Chief Prof. Holger Kersten and Prof. Paulo Limão-Vieira.

The publishers - EDP Sciences, Springer Nature, and the Italian Physical Society - wish to thank Prof. Almut Beige for the great work and effort he demonstrated in leading the journal over the past years.