Recently astronomers have been able to associate two seemingly unrelated phenomena: an explosive event known as a fast radio burst and the change in speed of a spinning magnetar. And now new research suggests that the cause ...
Astronomy
Jul 13, 2023
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30
They are seen as a beacon of hope for energy-saving electronics and the high-tech of the future: topological quantum materials. One of their properties is the conduction of spin-polarized electrons on their surface—even ...
Condensed Matter
Jul 13, 2023
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20
In the photonic synthetic dimension, the coupling of internal degrees of freedom of photons, such as frequency, spatial mode, and orbital angular momentum, generates extra dimensions in addition to real space. This approach ...
Optics & Photonics
Jul 7, 2023
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47
Optical holography is a powerful method for recording and reconstructing complete optical field information, including intensity and phase. It has found extensive applications in various fields, such as optical display, imaging, ...
Optics & Photonics
Jul 5, 2023
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2
A new publication by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC) provides definitive evidence that gluon "spins" are aligned in the same direction as the spin of the proton they're in. The result, ...
General Physics
Jun 21, 2023
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111
Findings published in Nature settle the dispute: phonons can be chiral. This fundamental concept, discovered using circular X-ray light, sees phonons twisting like a corkscrew through quartz.
Condensed Matter
Jun 9, 2023
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51
Vortices of light, null regions of intensity surrounded by spiral phases, make up the skeleton of a wavefield and influence the properties of light. Since the discovery of the tight connection of optical vortices and orbital ...
Optics & Photonics
May 31, 2023
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2
Researchers led by Ph.D. candidate Zang Lei and Prof. Qian Shengbang from Yunnan Observatories of the Chinese Academy of Sciences (CAS) have discovered that the orbital period of the persistent supersoft X-ray source QR Andromeda ...
Astronomy
May 11, 2023
0
132
Inside the proton are elementary particles called quarks. Quarks and protons have an intrinsic angular momentum called spin. Spin can point in different directions. When it is perpendicular to the proton's momentum, it is ...
General Physics
May 1, 2023
4
49
The orbital angular momentum (OAM) of electromagnetic waves—a kind of "structured light"—is associated with a helical or twisted wavefront.
Optics & Photonics
Apr 19, 2023
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