Particle physics

Vortex Electric Field—A Discovery Poised to Revolutionize Nanoelectronics

Modern science continually searches for innovative avenues to reshape the landscape of electronics and computing. In recent years, two-dimensional (2D) materials, such as graphene, have captured global attention as researchers explore their extraordinary properties. Now, a breakthrough by Professor Ly Thuc Hue’s team at the City University of Hong Kong (CityUHK) marks another pivotal moment in this rapidly evolving field.

New Observations of Group Delay in Multiphoton Processes

Scientists in Canada have made a groundbreaking advance in the field of quantum optics by observing group delay phenomena induced by gain during spontaneous parametric down-conversion (SPDC). In SPDC, a single high-energy photon is converted into two lower-energy “daughter” photons. Previous studies had largely focused on scenarios with a low probability of such photon conversions. However, by increasing the intensity of the pump laser, the researchers were able to generate multiple photon pairs simultaneously, ultimately revealing a measurable shift in the arrival times of the daughter photons.

Rydberg Atoms: A Quantum Computing Breakthrough in Simulation Technologies

Quantum simulators, specialized quantum computers designed to explore complex quantum phenomena beyond traditional computational capabilities, have taken a significant leap forward. Recent research by Natalia Chepiga, published in Physical Review…