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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 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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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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Continue reading “Majorana 1 Explained: The Path to a Million Qubits” | >

Superconductivity is a widely sought after material property, which entails an electrical resistance of zero below a specific critical temperature. So far, it has been observed in various materials, including recently in so-called multilayer graphene allotropes (i.e., materials that consist of several layers of a hexagonal carbon lattice).

Recent studies found that when bilayer graphene is placed on a WSe2 (tungsten-diselenide) substrate, its superconducting phase is enhanced. This results in a greater charge carrier density and higher (i.e., the temperature at which a material becomes a superconductor).

Researchers at University of California at Santa Barbara and California Institute of Technology have carried out a study aimed at further investigating this enhancement in the graphite allotrope Bernal bilayer graphene. Their paper, published in Nature Physics, reports the observation of two distinct superconducting states in this material, challenging current models of electron pairing in graphite allotropes.

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Isolated by mountains along the East African Rift is Lake Tanganyika. More than 400 miles long, it is the continent’s deepest lake and accounts for 16% of the world’s available freshwater. Between 2 and 3 million years ago, the number of virus species infecting fish in that immense lake exploded, and in a new study, UC Santa Cruz researchers propose that this explosion was perhaps triggered by the explosion of a distant star.

The new paper published in The Astrophysical Journal Letters, led by recent undergraduate student Caitlyn Nojiri and co-authored by astronomy and astrophysics professor Enrico Ramirez-Ruiz and postdoctoral fellow Noémie Globus, examined iron isotopes to identify a 2.5 million-year-old supernova.

The researchers connected this stellar explosion to a surge of radiation that pummeled Earth around the same time, and they assert that the blast was powerful enough to break the DNA of living creatures—possibly driving those viruses in Lake Tanganyika to mutate into new species.

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Electrons oscillate around the nucleus of an atom on extremely short timescales, typically completing a cycle in just a few hundred attoseconds. Because of their ultrafast motions, directly observing electron behavior in molecules has been challenging. Now researchers from UC San Diego’s Department of Chemistry and Biochemistry have suggested a new method to make visualizing electron motion a reality.

This new method describes an experimental concept called ultrafast vortex electron diffraction, which allows for direct visualization of electron movement in molecules on attosecond timescales. The paper is published in the journal Physical Review Letters.

The key idea behind this approach is the use of a specialized electron beam that spirals as it travels, enabling precise tracking of electron motion in both space and time. This method is especially sensitive to electronic coherence, where electrons move in a synchronized, harmonious manner.

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As the carriers of the weak force, the W and Z bosons are central to the Standard Model of particle physics. Though discovered four decades ago, the W and Z bosons continue to provide physicists with new avenues for exploration.

In a new study available on the arXiv preprint server, the ATLAS collaboration analyzed its full data set from the second run of the Large Hadron Collider (recorded from 2015 to 2018) in search of a rare process in which a Z boson is produced alongside two other weak-force carriers, or vector (V) bosons, as the W and Z are known.

“The production of three vector bosons is a very rare process at the LHC,” says Fabio Cerutti, ATLAS Physics Coordinator. “Its measurement provides information on the interactions among multiple bosons, which are linked to underlying symmetries of the Standard Model. This is a powerful tool for uncovering new physics phenomena, such as new, undiscovered particles that are too heavy to be directly produced at the LHC.”

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1,337 seconds: that was how long WEST, a tokamak run from the CEA Cadarache site in southern France and one of the EUROfusion consortium medium size Tokamak facilities, was able to maintain a plasma for on 12 February. This was a 25% improvement on the previous record time achieved with EAST, in China, a few weeks previously.

Reaching durations such as these is a crucial milestone for machines like ITER, which will need to maintain fusion plasmas for several minutes. The end goal is to control the plasma, which is naturally unstable, while ensuring that all plasma-facing components are able to withstand its radiation without malfunctioning or polluting it.

This is what CEA researchers intend to achieve and what explains the current record. Over the coming months, the WEST team will double down on its efforts to achieve very long plasma durations—up to several hours combined—but also to heat the plasma to even higher temperatures with a view to approaching the conditions expected in fusion plasmas.

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A study led by Professor Ginestra Bianconi from Queen Mary University of London, in collaboration with international researchers, has unveiled a transformative framework for understanding complex systems.

Published in Nature Physics, this paper establishes the new field of higher-order topological dynamics, revealing how the hidden geometry of networks shapes everything from brain activity to .

“Complex systems like the brain, climate, and next-generation artificial intelligence rely on interactions that extend beyond simple pairwise relationships. Our study reveals the critical role of higher-order networks, structures that capture multi-body interactions, in shaping the dynamics of such systems,” said Professor Bianconi.

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