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Category: quantum physics – Page 441

Decoding Quantum Nonlocality: A New Criterion for Quantum Networks

Researchers have developed a theoretical framework that provides deeper insights into quantum nonlocality, a vital property for quantum networks to outperform classical technology. Their study unified previous nonlocality research and showed that nonlocality is achievable only through a restricted set of quantum operations. This framework could aid in evaluating the quality of quantum networks and broaden our understanding of nonlocality.

A new theoretical study has been conducted, providing a framework for understanding nonlocality. This is a crucial characteristic that quantum networks must exhibit to perform tasks unachievable by traditional communications technology. The researchers involved clarified the concept of nonlocality, outlining the conditions necessary for establishing systems with potent quantum correlations.

Scientists Finally Solve the 40-Year-Old Mystery of Strange Metals

For nearly 40 years, materials called ‘strange metals’ have flummoxed quantum physicists, defying explanation by operating outside the normal rules of electricity.

Now research led by Aavishkar Patel of the Flatiron Institute’s Center for Computational Quantum Physics (CCQ) in New York City has identified, at long last, a mechanism that explains the characteristic properties of strange metals.

In the August 18 issue of Science, Patel and his colleagues present their universal theory of why strange metals are so weird—a solution to one of the greatest unsolved problems in condensed matter physics.

Quantum computing is the next revolution

Dr. Michio Kaku, the renowned theoretical physicist, walks us through the evolutionary journey of computing, from analog to digital to the quantum era.

Quantum computers hold immense promise because of their ability to tap into the weirdness of quantum mechanics. If nature allows us full access to its secrets, we could boost computing power exponentially, which in turn would allow us to solve all types of complex problems.

Quantum simulation reveals the secrets of superdiffusion

Trinity and IBM Dublin simulate superdiffusion on a quantum computer, marking a milestone in quantum physics.

Quantum physicists at Trinity have teamed up with IBM Dublin in an innovative project, successfully simulating superdiffusion on a quantum computer. This significant accomplishment is among the initial results of the TCD-IBM predoctoral scholarship program.

Credits: Trinity College Dublin.

TCD-IBM predoctoral scholarship program.

Bigger and better quantum computers possible with new ion trap, dubbed the Enchilada

Another concern was the dissipation of electrical power on the Enchilada Trap, which could generate significant heat, leading to increased outgassing from surfaces, a higher risk of electrical breakdown and elevated levels of electrical field noise. To address this issue, production specialists designed new microscopic features to reduce the capacitance of certain electrodes.

“Our team is always looking ahead,” said Sandia’s Zach Meinelt, the lead integrator on the project. “We collaborate with scientists and engineers to learn about the kind of technology, features and performance improvements they will need in the coming years. We then design and fabricate traps to meet those requirements and constantly seek ways to further improve.”

Sandia National Laboratories is a multimission laboratory operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration. Sandia Labs has major research and development responsibilities in nuclear deterrence, global security, defense, energy technologies and economic competitiveness, with main facilities in Albuquerque, New Mexico, and Livermore, California.

Why Many Researchers Now See the Brain as a Quantum System

😗😁 Year 2022

Quantum processes are helpful to know about when we hear a gimcrack new theory that dismisses or explains away human consciousness. We know it can’t just be that simple.

You may also wish to read: Researchers: The brain’s claustrum acts as a router for thoughts Francis Crick thought the claustrum might be the “seat of consciousness,” an inherently materialist concept. The researchers think he was wrong. Of course, seeing the claustrum as a router is more consistent with the immaterial nature of consciousness than seeing it as a seat.

Researchers attach electrodes to individual atomically precise graphene nanoribbons

Graphene nanoribbons have outstanding properties that can be precisely controlled. Researchers from Empa and ETH Zurich, in collaboration with partners from Peking University, the University of Warwick and the Max Planck Institute for Polymer Research, have succeeded in attaching electrodes to individual atomically precise nanoribbons, paving the way for precise characterization of the fascinating ribbons and their possible use in quantum technology.

Quantum technology is promising, but also perplexing. In the coming decades, it is expected to provide us with various technological breakthroughs: smaller and more precise sensors, highly secure communication networks, and powerful computers that can help develop new drugs and materials, control financial markets, and predict the weather much faster than current computing technology ever could.

To achieve this, we need so-called quantum materials: substances that exhibit pronounced quantum . One such material is . This two-dimensional structural form of carbon has unusual physical properties, such as extraordinarily high tensile strength, thermal and electrical conductivity—as well as certain . Restricting the already two-dimensional material even further, for instance, by giving it a ribbon-like shape, gives rise to a range of controllable quantum effects.

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