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Quantum holograms: Metasurfaces entangle light and information in new study

Quantum entanglement is a fundamental phenomenon in nature and one of the most intriguing aspects of quantum mechanics. It describes a correlation between two particles, such that measuring the properties of one instantly reveals those of the other, no matter how far apart they are. This unique property has been harnessed in applications such as quantum computing and quantum communication.

A common method for generating entanglement is through a , which produces with entangled polarizations via spontaneous parametric down-conversion (SPDC): if one photon is measured to be horizontally polarized, the other will always be vertically polarized, and vice versa.

Meanwhile, metasurfaces—ultrathin optical devices—are known for their ability to encode vast amounts of information, allowing the creation of high-resolution holograms. By combining metasurfaces with nonlinear crystals, researchers can explore a promising approach to enhancing the generation and control of entangled photon states.

It’s the first time in history — Light transformed into a strange form of solid

Scientists have achieved their initial goal of converting light into a supersolid material that unites solid-stage characteristics with those of superfluids. The discovery establishes paths toward studying uncommon quantum nature states of matter while carrying great implications for technological growth.

The matter form known as a supersolid behaves as both a solid and shows the properties of a superfluid. Despite keeping its rigid arrangement, the material demonstrates smooth flow while remaining non-frictional. Theoretical research on supersolids as a matter state has continued for decades since scientists first considered them in the 1970s. Through precise conditions, scientists believe materials can develop combined solid and superfluid properties to produce an absolute natural anomaly.

The discovery shows how particular materials become supple when exposed to exceptionally cold temperatures because they transition into a viscosity-free state. The dual properties of rigidness combined with fluidity create an extraordinary phase called supersolid in matter. Traditional materials possess two distinct states because solids maintain their shape, yet liquids possess free movement. Supersolids demonstrate behaviour beyond normal fluid-solid definitions because they exhibit features of both states.

Quantum Computer Performs 2.6 Billion Years of Computation In Only 4 Minutes

Four minutes. Imagine what you can accomplish in four minutes. Make coffee? Read half an article? Send a few text messages?

For most of us, four minutes pass in a heartbeat. Yet during those same four minutes, a quantum computer recently performed calculations that would have kept a conventional supercomputer busy for 2.6 billion years.

Scientists achieved something magical—compressing billions of years of computation into minutes. Such power shifts our understanding of what’s possible. Quantum computing won’t just change how we process information; it will transform medicine, climate science, materials design, and countless other fields we rely on daily.

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