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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.
- Published on Wednesday, 25 March 2015 08:24
Applying the hydrodynamics approach to granular matter helps explain its wide range of behaviour, regardless of whether the material is solid- or fluid-like
Sand, rocks, grains, salt or sugar are what physicists call granular media. A better understanding of granular media is important - particularly when mixed with water and air, as it forms the foundations of houses and off-shore windmills. Until recently, there was no single theory that could account for granular media’s flows at different speeds. Now, a new theory dubbed GSH, which stands for granular solid hydrodynamics, is supplementing previous models of granular material that work only for narrow speed ranges. And Yimin Jiang from Central South University, Changsha, China and Mario Liu from the University of Tübingen, Germany have now applied GSH to different experimental circumstances, for a wide range of flow speeds, in a study published in EPJ E.
- Published on Wednesday, 18 March 2015 08:14
Developing a new approach to quantum computing, based on braided quasi-particles as a logic gate to speed up computing, first requires understanding the potential error-inducing factors
What does hair styling have in common with quantum computing? The braiding pattern has inspired scientists as a potential new approach to quantum calculation. The idea is to rely on a network of intersecting chains, or nanowires, containing one-dimensional quasi-particles. The way these quasi-particles evolve in space time produces a braid-like pattern. These braids could then be used as the logic gate that provides the logical function required for calculations in computers. Due to their intrinsic properties, such braids are much more difficult to destabilise and less error-prone. Yet, local defects can still arise along nanowires. In a study published in EPJ B, Jelena Klinovaja affiliated with both the University of Basel, Switzerland and Harvard University, Cambridge, MA, USA, and Daniel Loss from the University of Basel, Switzerland identify the potential sources of computer errors arising from these defects.
- Published on Tuesday, 17 March 2015 16:35
Data on the transport of electrical charges in water vapour provide the key ingredients to new plasma models applicable to medicine
Applications of plasmas in medicine are a new frontier in therapeutic treatment. For example, they can help in stimulating tissue regeneration in the contexts of wound healing and dermatology. Before these and further applications can be developed, it is essential to understand the processes at work in plasmas - a unique kind of gas-like state of matter containing charged particles. Now a study published in EPJ D by a team led by Zoran Petrović from the University of Belgrade, Serbia, provides previously unavailable data on oxygen ion transport and the likelihood of such ions interacting with water molecules. These could contribute to new models of plasmas in liquids which account for how discharges are created in water vapour.
Open calls for papers
March 17-19, 2015
23-25 March 2015
March 24-27, 2015
May 13, 2015
July 9-10, 2015
Donostia, San Sebastian,
6-10 September 2015