An international team of astronomers reports the discovery of a new dwarf galaxy, which they have named Pegasus VII. The ...

On January 16, 2025, Mars will be visible in Singapore’s night sky, due to planetary opposition, bringing Earth, Mars, and the Sun into a straight line for a spectacular view. Owing to this alignment, ...

Abstract: We present a compact and efficient method for directly coupling a near-ultraviolet laser diode with high beam ellipticity to a hollow core fiber (HCF) using an all-fiber mode field diameter ...

Quantum entanglements between integer-order and fractional-order orbital angular momentums (OAMs) have been previously discussed. However, the entangled nature of arbitrary rational-order OAM has ...