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Category: quantum physics – Page 97

Introducing Majorana 1

Introducing a breakthrough in quantum computing. The Majorana 1 chip. An approach that ignores the limitations of current models to unleash the power of millions of potential qubits all working together to solve unsolvable challenges in creating new medicines, entirely new materials, and helping our natural world. All on a single chip.

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Microsoft Unveils First Quantum Computing Chip

Microsoft announced a major milestone in its quantum computing efforts on Wednesday, unveiling its first quantum computing chip, called Majorana 1. Jason Zander, Microsoft’s executive VP of strategic missions and technologies explains this breakthrough and how it gets quantum computing technology closer to real world applications. Zander speaks to Bloomberg Technology’s Jackie Davalos.
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Majorana 1 Explained: The Path to a Million Qubits

Hear from the Microsoft team behind the recent breakthrough in physics and quantum computing demonstrated by the new Majorana 1 chip, engineered from an entirely new material that has the potential to scale to millions of qubits on a single chip. Find out what is possible…

Chapters:
0:00 — Introducing Majorana 1
1:26 — Why does quantum computing matter?
2:47 — Qubits, the building blocks of quantum computing.
5:05 — Understanding the topological state.
7:00 — How the Majorana 1 chip works.
9:10 — How quantum and classical computing work together.
10:13 — The Quantum Age.

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Unlocking the secrets of superconductors: New insights into key structure-property connections in cuprates

When superconductors were discovered in 1911, they astounded researchers with their ability to conduct electricity with no resistance. However, they could only do so at temperatures close to absolute zero. But in 1986, scientists discovered that cuprates (a class of copper oxides) were superconductive at a relatively warm −225°F (above liquid nitrogen)—a step toward the ultimate goal of a superconductor that could operate at close to room temperature.

Applications of such a superconductor include compact and portable MRI machines, levitating trains, long-range electrical transmission without power loss, and more resilient quantum bits for quantum computers. Unfortunately, cuprates are a type of ceramic material which makes their application at industrial scales difficult—their brittleness, for example, would pose problems.

However, if researchers could understand what makes them superconduct at such high temperatures, they could recreate such processes in other materials. Despite a great deal of research, though, there is still a lack of consensus on the microscopic mechanism leading to their unusual superconductivity, making it difficult to take advantage of their unusual properties.

Magnetic semiconductor preserves 2D quantum properties in 3D material

There is a big problem with quantum technology—it’s tiny. The distinctive properties that exist at the subatomic scale usually disappear at macroscopic scales, making it difficult to harness their superior sensing and communication capabilities for real-world applications, like optical systems and advanced computing.

Now, however, an international team led by physicists at Penn State and Columbia University has developed a novel approach to maintain special quantum characteristics, even in three-dimensional (3D) materials.

The researchers published their findings in Nature Materials.

What is quantum coherence?

We say a message is incoherent when we can’t make it out, or when it doesn’t make sense. A scribbled note, a drunken argument or a conversation taking place five tables down in a crowded cafe might all be incoherent. In general, “coherent” means the opposite—consistent, connected, clear.

In science, the word coherence takes on more specific, mathematical definitions, but they all get at a similar concept: Something is coherent if it can be understood, if it forms a unified whole and if those first two qualities persist.

Scientists originally developed the concept of coherence to understand and describe the wave-like behavior of light. Since then, the concept has been generalized to other systems involving waves, such as acoustic, electronic and quantum mechanical systems.

TEMPORAL MECHANICS: The Quantum Upgrade

Have you ever questioned the true nature of time? Some physicists claim that time is just an illusion, but our lived experience suggests otherwise. In his latest work, Temporal Mechanics: D-Theory as a Critical Upgrade to Our Understanding of the Nature of Time, cyberneticist Alex M. Vikoulov explores how time is deeply rooted in information processing by conscious systems. From species-specific time perception to the implications of Quantum AI’s accelerated mentation, this video presents some mind-bending ideas in the physics of time. Could an advanced superintelligence manipulate its own past states? Could time itself be an editable construct? Could an AI with advanced temporal modeling actually see every possible future simultaneously?

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Breakthrough quantum chip that harnesses new state of matter could set us on the path to quantum supremacy

Majorana’s theory proposed that a particle could be its own antiparticle. That means it’s theoretically possible to bring two of these particles together, and they will either annihilate each other in a massive release of energy (as is normal) or can coexist stably when pairing up together — priming them to store quantum information.

These subatomic particles do not exist in nature, so to nudge them into being, Microsoft scientists had to make a series of breakthroughs in materials science, fabrication methods and measurement techniques. They outlined these discoveries — the culmination of a 17-year-long project — in a new study published Feb. 19 in the journal Nature.

Chief among these discoveries was the creation of this specific topoconductor, which is used as the basis of the qubit. The scientists built their topoconductor from a material stack that combined a semiconductor made of indium arsenide (typically used in devices like night vision goggles) with an aluminum superconductor.