Microsoft’s new “Majorana 1” processor is the first quantum chip powered by a topological core based on a new class of materials. (Photo by John Brecher.
Category: quantum physics – Page 26
The quantum properties of superconducting qubits might be improved by coating them with a noble metal such as gold.
Physicists have proposed a radical approach that questions decades of belief about how gravity, spacetime, and quantum mechanics might fit together.
They have introduced a theory that keeps the classical concept of spacetime as envisioned by Einstein, even as it addresses a long-standing rift in modern physics.
Read “” by Michael Filimowicz, PhD + AI on Medium.
The quantum mechanics of betraying everyone and no one at the same time.
Quantum computing has long struggled with creating entangled photons efficiently, but a team of researchers has discovered a game-changing method using metasurfaces—flat, engineered structures that control light.
By leveraging these metasurfaces, they can generate and manipulate entangled photons more easily and compactly than ever before. This breakthrough could open the door to smaller, more powerful quantum computers and even pave the way for quantum networks that deliver entangled photons to multiple users.
Revolutionizing Quantum Information Processing.
Scientists discover simpler way to achieve Einstein’s ‘spooky action at a distance’ thanks to AI breakthrough — bringing quantum internet closer to reality
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AI has helped physicists discover a simpler way of achieving quantum entanglement. This finding could make it easier to develop quantum communication technologies.
Physicists have long attempted to find a single theory that unites quantum mechanics and general relativity.
This has been very tricky because quantum mechanics focuses on the unpredictable nature of particles at microscopic scales, whereas general relativity explains gravity as the curvature of spacetime caused by massive objects.
The two theories discuss forces existing on different scales. Bianconi employed an interesting approach to deal with this challenge. She proposes an entropic action where, instead of being a fixed background, spacetime works like a quantum operator — acting on quantum states and deciding how they change over time.
The behaviour of quantum fields in curved spacetime is simulated using a two-dimensional trapped quantum gas of potassium atoms with a configurable trap and adjustable interaction strength.
During the study, the engineers used the quantum property to track the electrical activity of the heart muscles and cells.
About 100 trillion neutrinos are passing through your body at this very second. The particles are the second most abundant form of matter in the universe (behind light), but they interact very, very rarely. That property makes them ideal objects for studying the fundamentals of quantum mechanics; however, it also complicates measurements.
For example, neutrinos were discovered in the 1950s, but their properties are still obscure. New research, published in Nature by a team including Lawrence Livermore National Laboratory (LLNL) scientists, introduces an experimental technique to constrain the size of the neutrino’s wavepacket.
Imagine measuring a neutrino like finding a needle in a haystack. The particles are so elusive that, previously, researchers didn’t even know where on Earth the haystack was located. Now, they’ve identified the haystack, or, scientifically, the size of the neutrino’s “wavepacket.” This measurement doesn’t say exactly where the neutrino is located or how big it is, but it does constrain what those answers could be.