Hologram tagged posts

A quarter century ago, physicist Juan Maldacena proposed the AdS/CFT correspondence, an intriguing holographic connection between gravity in a three-dimensional universe and quantum physics on the universe’s two-dimensional boundary. This correspondence is at this stage, even a quarter century after Maldacena’s discovery, just a conjecture.

A statement about the nature of the universe that seems to be true, but one that has not yet been proven to actually reflect the reality that we live in. And what’s more, it only has limited utility and application to the real universe.

Still, even the mere appearance of the correspondence is more than suggestive...

Researchers at Columbia Engineering have developed a new class of integrated photonic devices – “leaky-wave metasurfaces” – that can convert light initially confined in an optical waveguide to an arbitrary optical pattern in free space...

This is an artist view of the shape of an electron in a high-temperature superconductor, which was measured in the work by Dalla Torre et al. The blue and red spheres represent Copper and Oxygen atoms, and the colored surface the positive (blue) and negative (red) parts of the wave describing the electron. Credit: Mario Sermoneta

A recent discovery provides an innovative technique for calculating the shapes of electrons. This finding will help scientists gain a better, faster understanding of the properties of complex materials. Dr. Emanuele Dalla Torre et al used holographic logic to compile an algorithm for visualizing the shape of an electron in a superconducting material...