EPJ B News – Topical issue on GW Calculations for Complex Systems

The GW method is emerging as a conceptual and computational platform for developing increasingly more accurate descriptions of electronic excitations. Guest editors Feliciano Giustino, Paolo Umari and Angel Rubio hope that the new EPJB topical issue on the Challenges and Solutions in GW Calculations for Complex Systems will provide an exciting perspective on the state-of-the-art in this fascinating research area, and encourage new developments in view of addressing the widest range of materials. The papers in this topical issue will be free to access through the end of November 2012.

EPJ B - Noise down, neuron signals up

Nervecell Cluster v02 01 © Sebastian Schreiter / Springer Verlag GmbH

A new model of background noise present in the nervous system could help better understand neuronal signalling delay in response to a stimulus.

Biomedical engineer Muhammet Uzuntarla from Bulent Ecevit University, Turkey, and his colleagues present a biologically accurate model of the underlying noise which is present in the nervous system. The article has just been published in EPJB. This work has implications for explaining how noise, modulated by unreliable synaptic transmission, induces a delay in the response of neurons to external stimuli as part of the neurons coding mechanism.


EPJ B - Banks’ cash stash: no shield against bankruptcy


Imposing minimal capital levels for banks is like attempting to solve a complex jigsaw puzzle with a poorly fitting piece that could lead to even greater chaos.

According to theoretical physicists João da Cruz and Pedro Lind from Lisbon University, Portugal, imposing minimum capital levels for banks may not prevent the insolvency of a minority of banks from triggering a widespread banking system collapse. In a study just published in EPJB, the researchers explain why this measure could instead lead to larger crises.


EPJ B - Telling the tale of the wealth tail

Image: ©

Models designed to represent taxation and wealth redistribution could be adjusted to reflect a target level of wealth distribution.

A mathematical physicist and her colleague, both from the Free University of Bozen-Bolzano, Italy, are just published a study in EPJB on a family of taxation and wealth redistribution models. The findings could lead to numerical simulations of potential wealth distribution scenarios playing out over the long term and could be used for policy decision making.


EPJ B - Turbulences at a standstill

Energy flowing from large-scale to small-scale places may be prevented from flowing freely in specific conditions.

For theoretical physicist Dima Shepelyansky from the CNRS-University of Toulouse, France, devising models of chaos and turbulence is his bread and butter. In a recent study published in EPJB, he presents an exception he found in a model of turbulence, indicating that there are energy flows from large to small scale in confined space. Indeed, under a specific energy threshold, there are no energy flows, similar to the way electron currents and energy spreading are stopped in disordered solids.


EPJ B has a new Editor in Chief to handle theory and simulations in condensed matter

Angel Rubio new EPJ B Editor in Chief to handle theory and simulations in condensed matter

From July 2012 Angel Rubio succeeds Luciano Colombo as Editor in Chief of EPJ B for the part of condensed matter theory and modeling. Professor Rubio is the head of the NanoBio spectroscopy group at the Universidad del País Vasco in Spain and leader of the theoretical spectroscopy group at the Fritz Haber Institut in Berlin. His group collaborates with many other experimental and theoretical research groups, as well as groups from industry. He has contributed with a large number of publications to the development of novel theoretical tools to investigate the electronic response of solids, nanostructures, biomolecules and hybrid materials to external electromagnetic fields. He has numerous honors and awards to his name which he garnered throughout his academic career.

EPJ B - Cell dynamics simulations: a fast way to profile block copolymers

Cell Dynamics Simulation (CDS) is a fast and efficient method for the simulation of kinetic processes in large-scale phase separation systems.

We review the application of this method to block copolymer systems and illustrate its use by examining a set of physical phenomena occurring in these systems. In spite of the simplicity of the model, such applications of CDS demonstrate that it is capable of accurately describing complex phenomena and is, therefore, a complementary method which can serve as a precursor to slower, more elaborate techniques.

Large Scale Simulation of block copolymers with cell dynamics M. Pinna and A.V. Zvelindovsky, Eur. Phys. J. B (2012) 85: 210, DOI: 10.1140/epjb/e2012-20968-6

EPJ B - Spurious switching points in traded stock dynamics

Illustration copyright: Sze Kit Poon/ iStockphoto

A selection of biased statistical subsets could yield an inaccurate interpretation of market behaviour and financial returns.

Physicists have rebuffed the existence of power laws governing the dynamics of traded stock volatility, volume and intertrade times at times of stock price extrema. They did this by demonstrating that what appeared as “switching points” in financial markets trends was due to a bias in the interpretation of market data statistics. This study by Vladimir Filimonov and Didier Sornette from the Department of Management, Technology and Economics at ETH Zurich in Switzerland has just been published in EPJB.


EPJ B - Superconducting stripe could become an ultra-low-voltage sensor

Minute-scale interactions govern electronic behaviour of superconductors with potential applications for voltage measurement techniques.

Researchers studying a superconducting stripe observed an intermittent motion of magnetic flux which carries vortices inside the regularly spaced weak conducting regions carved into the superconducting material. These vortices resulted in alternating static phases with zero voltage and dynamic phases, which are characterised by non-zero voltage peaks in the superconductor. This study, which has just been published in EPJB, was carried out by scientists from the Condensed Matter Theory Group of the University of Antwerp, Belgium, working in collaboration with Brazilian colleagues.


EPJ B - Quantum information motion control is now improved

Model simulates closer control over the transport of information-carrying electrons.

Physicists have recently devised a new method for handling the effect of the interplay between vibrations and electrons on electronic transport. Their paper has been published in EPJB. This study, led by scientists from Zhejiang University, Hangzhou, China, and the Centre for Computational Science and Engineering at the National University of Singapore, could have implications for quantum computers due to improvements in the transport of discrete amounts of information, known as qubits, that are encoded in electrons.


This was our first experience of publishing with EPJ Web of Conferences. We contacted the publisher in the middle of September, just one month prior to the Conference, but everything went through smoothly. We have had published MNPS Proceedings with different publishers in the past, and would like to tell that the EPJ Web of Conferences team was probably the best, very quick, helpful and interactive. Typically, we were getting responses from EPJ Web of Conferences team within less than an hour and have had help at every production stage.
We are very thankful to Solange Guenot, Web of Conferences Publishing Editor, and Isabelle Houlbert, Web of Conferences Production Editor, for their support. These ladies are top-level professionals, who made a great contribution to the success of this issue. We are fully satisfied with the publication of the Conference Proceedings and are looking forward to further cooperation. The publication was very fast, easy and of high quality. My colleagues and I strongly recommend EPJ Web of Conferences to anyone, who is interested in quick high-quality publication of conference proceedings.

On behalf of the Organizing and Program Committees and Editorial Team of MNPS-2019, Dr. Alexey B. Nadykto, Moscow State Technological University “STANKIN”, Moscow, Russia. EPJ Web of Conferences vol. 224 (2019)

ISSN: 2100-014X (Electronic Edition)

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