Quantum mechanics has come a long way during the past 100 years but still has a long way to go. Researchers now review the progress being made in using structured light in quantum protocols to create a larger encoding alphabet, stronger security and better resistance to noise. Quantum mechanics has come a long way during…

Researchers report on a technique to extract the quantum information hidden in an image that carries both classical and quantum information. This technique opens a new pathway for quantum enhance microscopes that aim to observe ultra-sensitive samples. Imaging techniques that employ quantum light are becoming of major importance nowadays, since their capabilities in terms of…

A multi-pronged data analysis approach that can strengthen the security of Internet of Things (IoT) devices — such as smart TVs, home video cameras and baby monitors — against current risks and threats has been created. «By 2020, more than 20 billion IoT devices will be in operation, and these devices can leave people vulnerable…

Electronic data is being produced at a breath-taking rate. Around ten zettabytes (ten trillion gigabytes) of data is stored in global server farms, and that’s doubling every two years. With computing already consuming 8% of global electricity, low-energy data-storage is a key priority. Next-generation ‘multi-state’ memory offers a highly energy efficient, low-cost, fast-access solution: stepping…

A new algorithm that fast forwards simulations could bring greater use ability to current and near-term quantum computers, opening the way for applications to run past strict time limits that hamper many quantum calculations. «Quantum computers have a limited time to perform calculations before their useful quantum nature, which we call coherence, breaks down,» said…

Self-erasing chips could help stop counterfeit electronics or provide alerts if sensitive shipments are tampered with. They rely on a new material that temporarily stores energy, changing the color of the light it emits. It self-erases in a matter of days, or it can be erased on demand with a flash of blue light. «It’s…

Quantum physicists have developed an algorithm which helps early quantum computers to perform calculations most efficiently. The Sussex team have shown how calculations in such a quantum computer can be done most efficiently, by using their new ‘routing algorithm’. Their paper «Efficient Qubit Routing for a Globally Connected Trapped Ion Quantum Computer» is published in…

Researchers identified a problem that holds the key to whether all encryption can be broken — as well as a surprising connection to a mathematical concept that aims to define and measure randomness. The question has been central to cryptography for thousands of years, and lies at the heart of efforts to secure private information…

Physicists have developed a simple concept that could improve significantly magnetic-based data processing. Using ultrashort electric pulses in the terahertz range, data can be written, read and erased very quickly. This would make data processing faster, more compact and energy efficient. The researchers confirmed their theory by running complex simulations. Magnetic data storage is indispensable…

In the fight against COVID-19, researchers have developed a new, non-invasive strategy to identify areas at greatest risk for spreading the disease. The team is drawing on data from existing cellular wireless networks to pinpoint potential hotspots for increased viral transmission. Led by Electrical and Computer Engineering Professor Edwin Chong, the team is drawing on…