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Category: quantum physics – Page 192

The Race to Harness Quantum Computing’s Mind-Bending Power

Quantum computers have the ability to harness the mysterious effects of quantum physics, making them a game changer for science. Professor Hannah Fry explains how they work on The Future with Hannah Fry.

With the promise of unimaginable computing power, a global race for quantum supremacy is raging. Who will be first to harness this new technological force, and what will they do with it?

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Exploiting quantum squeezing to enhance precision of measurements in systems with multiple factors

“The research aims to better understand how quantum squeezing can be used in more complicated measurement situations involving the estimation of multiple phases,” said Le. “By figuring out how to achieve the highest level of precision, we can pave the way for new technological breakthroughs in quantum sensing and imaging.”

The study looked at a situation where a three-dimensional magnetic field interacts with an ensemble of identical two-level quantum systems. In ideal cases, the precision of the measurements can be as accurate as theoretically possible. However, earlier research has struggled to explain how this works, especially in real-world situations where only one direction achieves full quantum entanglement.

This research will have broad implications. By making quantum measurements more precise for multiple phases, it could significantly advance various technologies. For example, quantum imaging could produce sharper images, quantum radar could detect objects more accurately, and could become even more precise, improving GPS and other time-sensitive technologies.

World’s most powerful X-ray laser to get 3,000 times more powerful

The Linac Coherent Light Source (LCLS), the world’s most powerful X-ray laser located at the SLAC National Accelerator Laboratory in the US, is set for a major upgrade that will increase its X-ray energy 3,000-fold, a press release shared with Interesting Engineering said.

When complete, the upgrade will let scientists explore atomic-scale processes in their search for answers in biology, materials science, quantum physics, and much more.

Temporal Mechanics: D-Theory of Time | Podcast Preview

Take a listen to this 7-min.

Podcast preview discussing the D-Theory of Time paper and the upcoming eBook release: The nature of time has long been a subject of profound inquiry within both the realms of physics and philosophy. This research paper introduces the “D-Theory of Time,” a novel conceptual framework that seeks to advance our comprehension of temporal mechanics. Departing from traditional paradigms, the D-Theory posits that time is not merely a linear progression of events but a dynamic, multidimensional construct influenced by both physical and cognitive phenomena. By integrating insights from quantum mechanics, relativity, and cognitive science, this theory offers a more holistic understanding of temporal flow and its implications on our perception of reality. Key elements include the exploration of temporal entanglement, the fluidity of past, present, and future, and the interplay between consciousness and temporal experience. This paper aims to elucidate the foundational principles of the D-Theory, provide empirical support through experimental data, and discuss its potential to resolve longstanding paradoxes in the study of time. The D-Theory of Time represents a significant upgrade to our understanding of temporal mechanics, opening new avenues for research and philosophical contemplation.

TEMPORAL MECHANICS: D-Theory as a Critical Upgrade to Our Understanding of the Nature of Time, The Seminal Papers series, by Alex M. Vikoulov, is now available to pre-order as a Kindle eBook on Amazon!

Release Date: January 5, 2025; Written by Alex M. Vikoulov; Publisher: Ecstadelic Media Group, Burlingame, California, USA; Format: Kindle eBook; Price: $9.99.

*Pre-Order eBook now: https://www.amazon.com/dp/B0DHL9GCW8?tag=lifeboatfound-20

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Research team succeeds in ultra-fast switching of tiny light sources

Extremely thin materials consisting of just a few atomic layers promise applications for electronics and quantum technologies. An international team led by TU Dresden has now made remarkable progress with an experiment conducted at Helmholtz-Zentrum Dresden-Rossendorf (HZDR): The experts were able to induce an extremely fast switching process between electrically neutral and charged luminescent particles in an ultra-thin, effectively two-dimensional material.

Lifting the veil of topological censorship

The authors of the theoretical work say in their paper, Our work addresses the question: ‘Where does the, famously quantized, charge current flow in a Chern insulator?’

This question received considerable attention in the context of the quantum Hall effect, but the progress there has been hampered by the lack of local probes, and no consensus has emerged so far. The fundamental problem is the following: topological protection is excellent at hiding local information (such as the spatial distribution of the current),—a phenomenon that we call topological censorship.

Two recent experiments, which used local probes to determine the spatial current distribution in Chern insulator heterostructures (Bi, Sb)2Te3, have remedied the dearth of experimental data in the case of the anomalous quantum Hall effect. These experiments reached unexpected, albeit very different, conclusions. Here, we provide the theory explaining one of these experiments.