Securing data transfers with relativity

The volume of data transferred is constantly increasing, but the absolute security of these exchanges cannot be guaranteed, as shown by cases of hacking frequently reported in the news. To counter hacking, a team from the University of Geneva (UNIGE), Switzerland, has developed a new system based on the concept of zero-knowledge proofs, the security of which is based on the physical principle of relativity: information cannot travel faster than the speed of light. Thus, one of the fundamental principles of modern physics allows for secure data transfer. This system allows users to identify themselves in complete confidentiality without disclosing any personal information, promising applications in the field of cryptocurrencies and blockchain. These results can be read in the journal Nature.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2ZIgc1r

Thin-film, high-frequency antenna array offers new flexibility for wireless communications

Princeton researchers have taken a step toward developing a type of antenna array that could coat an airplane's wings, function as a skin patch transmitting signals to medical implants, or cover a room as wallpaper that communicates with internet of things (IoT) devices.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/31rTnQx

3D simulations improve understanding of energetic-particle radiation and help protect space assets

A team of researchers used 3D particle simulations to model the acceleration of ions and electrons in a physical process called magnetic reconnection. The results could contribute to the understanding and forecasting of energetic particles released during magnetic reconnection, which could help protect space assets and advance space exploration.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2ZV7OMp

A strategy to control the spin polarization of electrons using helium

Spintronics, also known as spin electronics, is a research field that explores how the intrinsic spin of electrons and its magnetic moment can be exploited by devices. Spintronic devices are promising for a wide range of applications, particularly for efficiently storing and transferring data.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/3mBUUvp

New technique provides detailed information on nuclear material

Whether soil contaminated with nuclear material or archaeological finds: Analyzing isotopes can help determining the age and origin of a sample very accurately. Researchers from Leibniz University Hannover (LUH) and Johannes Gutenberg University Mainz (JGU) have now developed a new technique suitable for obtaining information on the origin of microparticles by analyzing isotope distributions. The project was funded by the Federal Ministry of Education and Research (BMBF) and the Siebold Sasse Foundation by more than two million euros. Their findings have now been published in Science Advances.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2Y9Cl8z

New method to prepare diagnostic medical radioisotope

Researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) have conducted a study on preparation of low specific activity (LSA) 99Mo/99mTc generator, which has potential application prospect for the accelerator/reactor-based production of the medical isotope 99Mo.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/3CDcAw5

Physicists discover how particles self-assemble

A team of physicists has discovered how DNA molecules self-organize into adhesive patches between particles in response to assembly instructions. Its findings offer a "proof of concept" for an innovative way to produce materials with a well-defined connectivity between the particles.

from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/3wdPgmw