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Archive for the ‘quantum physics’ category: Page 30

Sep 29, 2024

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

Posted by in categories: innovation, quantum physics

“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.

Sep 28, 2024

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

Posted by in categories: biological, quantum physics

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.

Sep 27, 2024

Temporal Mechanics: D-Theory of Time | Podcast Preview

Posted by in categories: neuroscience, quantum physics

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.

Continue reading “Temporal Mechanics: D-Theory of Time | Podcast Preview” »

Sep 27, 2024

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

Posted by in categories: particle physics, quantum physics

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.

Sep 27, 2024

Security protocol leverages quantum mechanics to shield data from attackers during cloud-based computation

Posted by in categories: finance, health, quantum physics, robotics/AI, security

Deep-learning models are being used in many fields, from health care diagnostics to financial forecasting. However, these models are so computationally intensive that they require the use of powerful cloud-based servers.

Sep 26, 2024

Your Consciousness Can Connect With the Whole Universe, Groundbreaking New Research Suggests

Posted by in categories: neuroscience, quantum physics

This latest clue about the architecture of consciousness supports a Nobel-Prize winner’s theory about how quantum physics works in your brain.

Sep 26, 2024

Physicists Reveal a Quantum Geometry That Exists Outside of Space and Time

Posted by in categories: particle physics, quantum physics

A decade after the discovery of the “amplituhedron,” physicists have excavated more of the timeless geometry underlying the standard picture of how particles move.

Sep 26, 2024

A versatile approach to realize quantum-enhanced metrology with large Fock states

Posted by in category: quantum physics

The collecting of highly precise measurements can enable research developments and technological advancements in numerous fields. In physics, high-precision measurements can unveil new phenomena and experimentally validate theories.

Sep 26, 2024

Lifting the veil of topological censorship

Posted by in category: quantum physics

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.

Sep 26, 2024

Ultra-high speed camera for molecules: Attosecond spectroscopy captures electron transfer dynamics

Posted by in categories: quantum physics, solar power, sustainability

In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. The redistribution of electronic density in molecules after they absorb light is an ultrafast phenomenon of great importance involving quantum effects and molecular dynamics.

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