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Open Calls for Papers

EPJ ST Special Issue: Soliton Dynamics in Complex Physical Systems: Theory and Applications

Details: Published on 28 February 2025

Guest Editors: Qin Zhou, Chaoqing Dai, Wenjun Liu

Solitons emerge from the delicate balance between dispersion and nonlinearity in physical systems and are observed in a wide array of fields, including fluid dynamics, optics, plasma physics, condensed matter physics, and biophysics, which exhibit a rich variety of behaviors, from simple particle-like interactions to more complex phenomena such as soliton fission and fusion, breather modes, rogue waves, and dark solitons. Despite extensive research, key challenges remain, including understanding soliton stability under perturbations, the dynamics of soliton interactions in complex media, and developing robust methods for controlling soliton behavior in practical applications. Recent advances in experimental techniques and computational methods have opened new avenues for studying soliton dynamics. For example, ultrafast laser spectroscopy and high-resolution imaging techniques have provided unprecedented insights into the behavior of solitons in real-time. Similarly, advanced numerical simulations have enabled researchers to model complex soliton interactions and predict their behavior under various conditions. However, there is still much to be explored, and interdisciplinary approaches combining soliton dynamics with fields such as machine learning, control theory, and quantum mechanics hold great promise for developing innovative solutions and technologies.

EPJ ST Special Issue: Advancement in Computational Fluid Mechanics: Bridging Theory and Application

Details: Published on 06 February 2025

Guest Editors: Ashoke De, Pratik Das, Nitish Arya, Mayank Verma

Computational Fluid Mechanics (CFM) based design tools have become an essential component of the research and development process in the industry and academia. With the advent of modern computers, it is now possible to develop predictive CFM models that are cutting costs and accelerating the pace of innovation. This special issue aims to showcase the latest advancements, methodologies, and applications in CFM, highlighting both theoretical developments and practical applications. Here we aim to highlight the transformative power of CFM in addressing real-world challenges across diverse fields such as aerospace engineering, bioengineering, climate modelling, renewable energy, and more. The Special Issue invites high-quality original research articles, review papers, and case studies that address the latest advancements in Computational Fluid Mechanics (CFM) and its applications in real-world challenges.

EPJ ST Special Issue: In Memoriam Hermann Haken: Synergetics and Self-organisation in Complex Systems

Details: Published on 28 October 2024

Guest Editors: Axel Hutt, Axel Pelster, Christian Uhl and Jürgen Kurths

With this special issue in The European Journal of Physics Special Topics the Guest Editors would like to commemorate the physicist Hermann Haken who passed away in August 2024 and who was one of the foremost researchers in theoretical physics and complex systems since the beginning of the 1960s. He was the first to describe the solid-state laser by quantum field theory and then ingeniously extended the deep physical insights gained from the laser to diverse complex systems in hydrodynamics, chemistry, biology, neuroscience as well as psychology, sociology, economy and philosophy, thus founding the interdisciplinary research field ’Synergetics’. It is envisaged that former colleagues and various other researchers influenced by Hermann Haken’s work will be paying tribute to this work in this Memorial issue. They are invited to describe recent developments that build on the repercussions of Hermann Haken’s legacy and extend his ideas to new directions. Thus, the Memorial issue will demonstrate the strong significance and breadth of Hermann Haken’s insight in fostering the massive progress in theoretical physics and complexity science of recent and future times.

EPJ ST Special issue: Flexible Electronic Devices: Mechanics Design and Applications

Details: Published on 01 October 2024

Guest Editors: Chengjun Wang, Yinji Ma, Rui Li

Flexible electronic devices have significantly broadened the application scope of conventional rigid electronics, especially in the field of biomedicine, robotics, and human-machine interaction, garnering substantial attention from both academia and industries. Examples of flexible electronic devices include soft/stretchable electronics, bio-integrated electronics, flexible energy-harvesting devices, flexible ultrasonic devices, reconfigurable electronic, origami and kirigami-based electronics, flexible metamaterials/metasurfaces, and soft actuator/robots. These emerging flexible devices have undergone extensive development in recent years, primarily employing mechanics design strategies to achieve superior stretchability and conformalability for seamless integration with soft, deformable complex surfaces (e.g., tissues and machines) while maintaining the stable functionalities even under large deformations.

EPJ ST Special Issue: Energy Saving in Physics Research and Applications

Details: Published on 23 September 2024

Guest Editors: Jürgen Kurths, Holger Kersten, Harinipriya Seshadri, B. Ananthanarayan

Energy saving is one of the most challenging problems and of highest relevance due to the expected impacts on limiting or mitigating global climate change. While there is a lot of research and development going into novel energy saving science and technology, research itself - both fundamental and applied, academic and industrial - can self-examine its own practices, quite independently of the scale of their contribution, to lead the way in setting, fostering and promoting best approaches and practices in energy saving.

This issue in EPJ ST aims thus to collect papers in which the research community, being active in various academic and industrial fields and institutions, reflects on how to contribute itself, from individual up to most general initiatives to energy savings in daily operations and research work, to the global goal of saving energy resources.

EPJ ST Special Issue: Theoretical Precision Studies of Processes in High Energy Colliders

Details: Published on 18 September 2024

Guest Editor: Narayan Rana

Precision physics is at the current frontier of particle physics research. Albeit the grand success of the Standard Model to explain most of the particle physics phenomena, it still remains an incomplete theory due to its lack of success to explain some important puzzles like the existence of dark matter etc. On the other hand, the signatures of new physics remain well-hidden in the haystack of current high-energy collider data. In the search of such signatures, precision studies of both the theoretical and experimental frontier must be performed. The high energy description of the Standard Model is perturbative in nature and the theoretical precision studies involve the computations of these perturbative higher-order corrections. The field of precision studies is growing rapidly and is of great interest to young researchers.

EPJ ST Special Issue: Frontier 24: New Perspectives on the Intersection of Elementary Particle and Astroparticle Physics and Dark Matter Physics

Details: Published on 04 September 2024

Guest Editors: B. Ananthanarayan, Biplob Bhattacherjee, Sudhir K. Vempati

The fields of elementary particle physics and astroparticle physics and cosmology have increasingly enriched one another, with models from one field feeding into the others, and also offering constraints on models. Dark matter, dark energy continue to be some of the most important puzzles confronting these subjects especially at their intersections. These fields are growing rapidly and are of great interest also to young and mature researchers.

EPJ ST Special Issue: Space Manufacturing: Materials, Mechanics and Manufacturing

Details: Published on 17 June 2024

Guest Editors: Aloke Kumar, Ranajay Ghosh, Seetha Raghavan

Space travel and habitation have taken a renewed vigour in the last few years, spurred by new scientific and commercial breakthroughs in launch vehicles, satellites, payload capabilities and superior ground testing research. Militaries and industries worldwide have joined and reinforced these trends for their missions with multiple new space agencies and mandates set up over the last few years. This has ignited an international race towards exploring all potential applications and uses of the extra-terrestrial environment, ranging from using the space environment for deploying powerful instrument platforms to entirely new concepts on extra-terrestrial production chains. An explosion of new scientific research has accompanied this ‘return to space’ movement. In particular, space manufacturing represents a convergence of various disciplines, including materials science, biology, biophysics, mechanics, and fabrication. It encompasses a spectrum of endeavours, from terrestrial manufacturing for the new space age to in-orbit assembly and manufacturing (ISAM) and manufacturing for sustainable space settlements. Realizing the potential of space manufacturing demands dedicated research efforts in the years to come. The scope of space manufacturing is vast and encompasses numerous possibilities. Space habitats, for instance, could be constructed using materials fabricated in space, tailored to withstand the rigours of cosmic radiation and microgravity.

EPJ ST Special Issue: Additive Manufacturing for Particle Accelerators

Details: Published on 01 March 2024

Guest Editors: Chuan Zhang and Michael Mayerhofer

Particle accelerators are essential tools for basic research and also have a wide range of important applications for energy, environment, healthcare, materials, security, etc. However, manufacturing complexity and cost are often limiting factors in developing new-type particle accelerators and increasing their usage. Additive manufacturing, which is revolutionizing our way to design and build things, could provide one promising solution to the dilemma. When additive manufacturing meets particle accelerators, the difficulties of the traditional technologies in manufacturing very complex structures e.g. advanced water-cooling channels can be easily overcome so that not only the construction time and cost of particle accelerators will be reduced considerably but also novel designs for better accelerator performance can be enabled.

EPJ ST Special Issue: Applied Physics of Superconductors in High-Power Applications

Details: Published on 23 February 2024

Guest Editors: Xiaoyuan Chen, Lin Fu, Boyang Shen, Junzhi Ye

Scope:
A superconductor is characterized by its zero-resistance, Meissner effect and Josephson effect. Replacing conventional-conductor-based devices by superconductor-based counterparts can yield a more significant benefit for the high-power applications. The fundamental physical behaviours of superconductors encountering high electric current and high magnetic field are necessarily important for the stable and safe operating in high-power applications. Currently, various advanced superconducting technologies and applications have been widely explored in high-power engineering, mainly involving energy producer, carrier, converter, storer and protector in electrical power engineering, and signal sensor, collector, processor and controller in electronic engineering. These cutting-edge superconducting technologies and applications can work collaboratively, which makes energy/information generation, transmission, distribution, and supply chains more complex. A comprehensive understanding from fundamental physical behaviours of superconductors to advanced superconducting devices and systems will accelerate the transition from laboratory research to industrial applications in near future.