A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2026.250149, discusses a quarter-wave geometric-phase ...

Scientists test Einstein’s quantum challenge with one atom, directly measuring when photon paths erase interference stripes.

A new optical device allows researchers to generate and switch between two stable, donut-shaped light patterns called skyrmions. These light vortices hold their shape even when disturbed, making them ...

To capture higher-definition and sharper images of cosmological objects, astronomers sometimes combine the data collected by ...

An experiment measuring a single atom's recoil confirmed that observing a particle destroys interference, settling the ...

A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2026.250149, discusses a quarter-wave geometric-phase route to practical 3D ...

A sensitive matter-wave interferometer measuring moiré fringes offers force sensitivity comparable to quantum interference ...

QWP-based GP-SIDH architecture for artifact-suppressed full-color holography under broadband incoherent illumination: schematic overview (left) and video-rate phase retrieval with high-fidelity ...

The work, reported in Optica by scientists from Tianjin University and Nanyang Technological University, marks the first experimental realization of skyrmions that can be actively toggled ...

Download the detailed syllabus PDF here. Check the section-wise topics, exam pattern, preparation strategy, and best books.

Time may feel smooth and continuous, but at the quantum level it behaves very differently. Physicists have now found a way to measure how long ultrafast quantum events actually last, without relying ...