Quantum nonlinear optics with Rydberg atoms harnesses the extreme sensitivity and long-range interactions of atoms in highly excited states to induce strong optical nonlinearities at the level of ...

"Our nonlinear system transmits quantum information with 94% fidelity, compared to the theoretical limit of 33% on systems using linear optical components," said Kejie Fang, an Illinois professor of ...

Figure. Concept of new quantum imaging with ultra-thin nonlinear metasurfaces. The metasurface generates spatially entangled photon pairs, with their emission angle tunable via the pump laser ...

A new study explores the behavior of photons, the elementary particles of light, as they encounter boundaries where material properties change rapidly over time. This research uncovers remarkable ...

Many systems obey simple, linear rules: If you pull twice as hard on a spring, it stretches twice as far. However, when we introduce very large forces or complicated interactions, that linear rule ...

Microsoft’s “harvest now, decrypt later” push turns post-quantum security into an enterprise budget line, and QUBT is ...

The study of polaritons reveals their role in quantum circuits and photonics, enhancing light-matter interactions for ...

Phonons are the quantum units of mechanical vibration. They describe how motion propagates through a solid at the smallest possible scales, in much the same way that electrons describe electric ...

Fig 1: (a) Concept of cluster quantum microcombs. (b) Quadrature noise variances of EPR pairs relative to vacuum shot noise. (c) Covariance matrix of a 1D cluster state. (d) Covariance matrix of a 2D ...

A new microchip-sized device could dramatically accelerate the future of quantum computing. It controls laser frequencies with extreme precision while using far less power than today’s bulky systems.

The latest trends in software development from the Computer Weekly Application Developer Network. Sometimes classed as a Japanese startup, OptQC works with optical photonic technologies to develop a ...