A team of physicists has uncovered a hidden topological structure within one of the most widely used sources of quantum entanglement.

Physicists have long relied on elegant theorems to connect the abstract math of quantum theory with the tangible behavior of particles, yet some of those theorems have rested on assumptions that never ...

Researchers have captured the first direct, momentum-resolved evidence that certain lattice vibrations carry measurable ...

In a new study published in Nature Physics, scientists have achieved the first experimental observation of phonon angular momentum in chiral crystals. Phonons are the quantized lattice vibrations ...

Optical vortex plays an important role in a variety of fields, such as particle tweezing, quantum communication, astrophysics, and microscopy. Especially, the application of optical vortex has been ...

The interplay between angular momentum, electron spin and magnetism at the nanoscale could have applications in spintronics, transducers and actuators, as well as fundamental research. In 1915, Albert ...

Surprising as it may sound, 107 years after the introduction of general relativity, the meanings of basic concepts are still being worked out. More than a century after Albert Einstein unveiled ...