Windows 10: Thought I might spark your interest in the Majorana 1 - Quantum computing chip

Drew1903 · Mar 3, 2025

Breakthrough in Quantum Computing: Microsoft's Majorana 1 chip represents a significant leap in quantum computing technology. It uses topological qubits, which are more stable and less prone to errors compared to traditional qubits.Topological Core Architecture: The chip is built on a new architecture called the Topological Core, which allows for the creation of topological qubits using a new material called a topoconductor.Scalability: Majorana 1 is designed to scale up to a million qubits on a single chip, which could enable quantum computers to tackle complex industrial problems within year

:)

twilyth · Mar 3, 2025

True quantum computer must exhibit Majorana fermions

The article doesn't really explain why this would have to be true but this is a pretty interesting conclusion considering that we're not even sure that Majorana fermions exist.

These are particles that their own anti-particles, which seems self-contradictory, but then 'welcome to the wonderful world of quantum mechanics.' It's been proposed that neutrinos could be such particles since they oscillate between 3 different 'flavors' on the fly - electron, muon and tau neutrinos. But AFAIK there's no evidence of this.

From the article

The study used analytical and numerical methods. "What we found," explains Franchini, "is that a system that does not exhibit 'Majorana fermions' cannot be a universal quantum simulator." Majorana fermions were hypothesized by Ettore Majorana in a paper published 1937, and they display peculiar characteristics: a Majorana fermion is also its own antiparticle. "That means that if Majorana fermions meet they annihilate among themselves," continues Franchini. "In recent years it has been suggested that these fermions could be found in states of matter useful for quantum computing, and our study confirms that they must be present, with a certain probability related to entanglement, in the material used to build the machine."

Entanglement, or "action at a distance," is a property of quantum systems whereby an action done on one part of the system has an effect on another part of the same system, even if the latter has been split into two parts that are located very far apart. "Entanglement is a fundamental phenomenon for quantum computers," explains Franchini.
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Brink · Mar 3, 2025

Intel Starts Testing Smallest ‘Spin Qubit’ Chip for Quantum Computing

Intel researchers are taking new steps toward quantum computers by testing a tiny new “spin qubit” chip. The new chip was created in Intel’s D1D Fab in Oregon using the same silicon manufacturing techniques that the company has perfected for creating billions of traditional computer chips. Smaller than a pencil’s eraser, it is the tiniest quantum computing chip Intel has made.

The new spin qubit chip runs at the extremely low temperatures required for quantum computing: roughly 460 degrees below zero Fahrenheit – 250 times colder than space.

The spin qubit chip does not contain transistors – the on/off switches that form the basis of today’s computing devices – but qubits (short for “quantum bits”) that can hold a single electron. The behavior of that single electron, which can be in multiple spin states simultaneously, offers vastly greater computing power than today’s transistors, and is the basis of quantum computing.

The zigzag lines in the photo are printed wires connecting the chip’s qubits to the outside world.

One feature of Intel’s tiny new spin qubit chip is especially promising. Its qubits are extraordinarily small – about 50 nanometers across and visible only under an electron microscope. About 1,500 qubits could fit across the diameter of a single human hair.

This means the design for new Intel spin qubit chip could be dramatically scaled up. Future quantum computers will contain thousands or even millions of qubits — and will be vastly more powerful than today’s fastest supercomputers.

More: Quantum Computing at Intel | The Future of Quantum Computing is Counted in Qubits (Intel Explainer) | All Intel Images

A 2018 photo shows Intel’s new quantum computing chip balanced on a pencil eraser. Researchers started testing this “spin qubit chip” at the extremely low temperatures necessary for quantum computing: about 460 degrees below zero Fahrenheit. Intel projects that qubit-based quantum computers, which operate based on the behaviors of single electrons, could someday be more powerful than today’s supercomputers. (Credit: Walden Kirsch/Intel Corporation)
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Source: https://newsroom.intel.com/news/inte...tum-computing/

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Brink · Mar 3, 2025

Intel Starts Testing Smallest ‘Spin Qubit’ Chip for Quantum Computing

Intel researchers are taking new steps toward quantum computers by testing a tiny new “spin qubit” chip. The new chip was created in Intel’s D1D Fab in Oregon using the same silicon manufacturing techniques that the company has perfected for creating billions of traditional computer chips. Smaller than a pencil’s eraser, it is the tiniest quantum computing chip Intel has made.

The new spin qubit chip runs at the extremely low temperatures required for quantum computing: roughly 460 degrees below zero Fahrenheit – 250 times colder than space.

The spin qubit chip does not contain transistors – the on/off switches that form the basis of today’s computing devices – but qubits (short for “quantum bits”) that can hold a single electron. The behavior of that single electron, which can be in multiple spin states simultaneously, offers vastly greater computing power than today’s transistors, and is the basis of quantum computing.

The zigzag lines in the photo are printed wires connecting the chip’s qubits to the outside world.

One feature of Intel’s tiny new spin qubit chip is especially promising. Its qubits are extraordinarily small – about 50 nanometers across and visible only under an electron microscope. About 1,500 qubits could fit across the diameter of a single human hair.

This means the design for new Intel spin qubit chip could be dramatically scaled up. Future quantum computers will contain thousands or even millions of qubits — and will be vastly more powerful than today’s fastest supercomputers.

More: Quantum Computing at Intel | The Future of Quantum Computing is Counted in Qubits (Intel Explainer) | All Intel Images

A 2018 photo shows Intel’s new quantum computing chip balanced on a pencil eraser. Researchers started testing this “spin qubit chip” at the extremely low temperatures necessary for quantum computing: about 460 degrees below zero Fahrenheit. Intel projects that qubit-based quantum computers, which operate based on the behaviors of single electrons, could someday be more powerful than today’s supercomputers. (Credit: Walden Kirsch/Intel Corporation)
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Source: https://newsroom.intel.com/news/inte...tum-computing/

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Windows 10: Thought I might spark your interest in the Majorana 1 - Quantum computing chip

Thought I might spark your interest in the Majorana 1 - Quantum computing chip

Thought I might spark your interest in the Majorana 1 - Quantum computing chip

Thought I might spark your interest in the Majorana 1 - Quantum computing chip

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