Phonons can be chiral: Study claims to settle the debate
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.
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
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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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430
Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new, warm Jupiter-sized exoplanet orbiting a dwarf star. The newfound alien world, designated TOI-4127 b, is more ...
Magnetic nanostructures have long been part of our everyday life, e.g., in the form of fast and compact data storage devices or highly sensitive sensors. A major contribution to the understanding of many of the relevant magnetic ...
General Physics
Apr 5, 2023
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184
Holography, invented by Gabor, provides an approach for recording and reconstructing the complete information (i.e. intensity and phase) of the light from an object. Since its invention, holographic-related technologies have ...
Optics & Photonics
Mar 31, 2023
6
35
Light is composed of electric and magnetic fields that oscillate perpendicular to each other. When these oscillations are restricted, say, along a plane, it results in polarized light. Polarized light is of great importance ...
Optics & Photonics
Mar 27, 2023
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413
The Milky Way increases its mass by merging with low-mass dwarf galaxies. Some of these dwarf galaxies will experience tidal forces during orbiting around the Milky Way, and their member stars will be lost.
Astronomy
Mar 21, 2023
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27