Quantum

The extraordinary promise of quantum technology—depend on quantum “entanglement,” in which the physical states of two or more objects such as atoms, photons or ions become so inextricably connected that the state of one particle can instantly influence the state of the other—no matter how far apart they are. Today, …

Sensor technology vital for UK critical national infrastructure is becoming outdated, warn experts at the University of Birmingham-led UK Quantum Technology Hub Sensors and Timing. The current weakness threatens anticipated advances, many involving quantum technologies, across different sectors – including climate change, defence, transportation, energy supplies and healthcare.   The warning …

We live in digitised, connected societies, in an Internet of Things (IoT) world where our reliance on software, hardware, and the networks that connect us, grows exponentially. Our increasing global reliance on what we hope and assume are secure networks, is profound. The threat of large-scale cyber-attack has become a …

‘The development of a “quantum computer” is one of the outstanding technological challenges of the 21st century. A quantum computer is a machine that processes information according to the rules of quantum physics, which govern the behaviour of microscopic particles at the scale of atoms and smaller. Quantum computers gain …

Quantum key distribution (QKD) uses quantum mechanics to guarantee secure communication. It enables two parties to produce a shared random secret key known only to them, which can then be used to encrypt and decrypt messages. QKD is said to be nearly impossible to hack, since any attempted eavesdropping would …

We are in midst of the second quantum revolution moving from merely computing quantum properties of systems to exploiting them. Researchers are developing new capabilities in secure communication, ultra-sensitive and high signal to noise physical sensing of the environment and Quantum Information Science (QIS). Quantum sensing has become a distinct …

The development of precise atomic clocks plays an increasingly important role in modern society. Shared timing information constitutes a key resource for navigation with a direct correspondence between timing accuracy and precision in applications such as the Global Positioning System.   Atomic clocks are one of the most accurate time …

Recent advances in the understanding and control of quantum technologies, such as those based on cold atoms, have resulted in devices with extraordinary metrological sensitivities with applications in a vast array of areas ranging from geophysical type applications to satellite independent navigation. To realise this potential outside of a lab …