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Archive for the ‘quantum physics’ category: Page 222

May 24, 2023

Bridging Quantum Theory and Relativity: Curved Spacetime in a Quantum Simulator

Posted by in categories: particle physics, quantum physics

New techniques can answer questions that were previously inaccessible experimentally — including questions about the relationship between quantum mechanics and relativity.

Scientists at TU Wien and other institutions have developed a “quantum simulator” using ultracold atomic clouds to model quantum particles in curved spacetime, marking a major step toward reconciling quantum theory and the theory of relativity. The model system offers a tool to study gravitational lensing effects in a quantum field, which may lead to new insights in the elusive field of quantum gravity and other areas of physics.

The theory of relativity works well when you want to explain cosmic-scale phenomena — such as the gravitational waves.

May 24, 2023

Axial Higgs mode detected by quantum pathway interference in RTe3

Posted by in category: quantum physics

This could be used for interstellar travel and it is really small. Also it could power cities or offices.


Detection of an axial Higgs mode by quantum pathway interference reveals an unconventional charge density wave phase in RTe3.

May 23, 2023

New type of quasiparticle emerges to tame quantum computing errors

Posted by in categories: computing, quantum physics

Errors are the Achilles’ heel of quantum computation, cropping up at random and threatening to rui.

May 23, 2023

Quantum Theory’s ‘Measurement Problem’ May Be a Poison Pill for Objective Reality

Posted by in categories: biotech/medical, quantum physics

Solving a notorious quantum quandary could require abandoning some of science’s most cherished assumptions about the physical world.

May 22, 2023

Hello, Computer — Sabine Hossenfelder — A.I. going mainstream

Posted by in categories: cosmology, mathematics, media & arts, particle physics, quantum physics, robotics/AI

Perspective from a very-educated layman. Er, laywoman.


This is Hello, Computer, a series of interviews carried out in 2023 at a time when artificial intelligence appears to be going everywhere, all at once.

Continue reading “Hello, Computer — Sabine Hossenfelder — A.I. going mainstream” »

May 22, 2023

A new place for consciousness in our understanding of the universe

Posted by in categories: neuroscience, quantum physics

To make sense of mysteries like quantum mechanics and the passage of time, theorists are trying to reformulate physics to include subjective experience as a physical constituent of the world.

By Thomas Lewton

May 22, 2023

Quantum Biology: Unlocking the Mysteries of How Life Works

Posted by in categories: bioengineering, biotech/medical, genetics, quantum physics

Quantum biology explores how quantum effects influence biological processes, potentially leading to breakthroughs in medicine and biotechnology. Despite the assumption that quantum effects rapidly disappear in biological systems, research suggests these effects play a key role in physiological processes. This opens up the possibility of manipulating these processes to create non-invasive, remote-controlled therapeutic devices. However, achieving this requires a new, interdisciplinary approach to scientific research.

Imagine using your cell phone to control the activity of your own cells to treat injuries and diseases. It sounds like something from the imagination of an overly optimistic science fiction writer. But this may one day be a possibility through the emerging field of quantum biology.

Continue reading “Quantum Biology: Unlocking the Mysteries of How Life Works” »

May 22, 2023

Using nanofaceting to manipulate quantum dots into nanocrystals

Posted by in categories: biotech/medical, nanotechnology, quantum physics

A new method of controlling the shape of tiny particles about one tenth of the width of human hair could make the technology that powers our daily lives more stable and more efficient, scientists claim.

The process, which transforms the structure of microscopic semiconductor materials known as quantum dots, provides industry with opportunities to optimize optoelectronics, , photonics, and biomedical imaging technologies, according to the Cardiff University-led team.

Their study, published in Nano Letters, used a process called nanofaceting—the formation of small, on nanoparticles—to manipulate the quantum dots into a variety of shapes called nanocrystals.

May 21, 2023

May 15, 2023

Posted by in categories: biological, quantum physics

California NanoSystems Institute News Member News May 15, 2023 | Quantum physics proposes a new way to study biology – and the results could revolutionize our understanding of how life works.

May 21, 2023

Our Existence Always Contains Some Uncertainty. This Physics Principle Explains Why

Posted by in categories: food, quantum physics

😗


German theoretical physicist Werner Heisenberg first introduced his uncertainty principle in a 1925 paper. It’s special because it remains intact no matter how good our experimental methods get; this isn’t a lack of precision in measurement. It doesn’t matter how smart you are, or how sophisticated your equipment, is you can’t think your way past it. It’s a fact of nature.

Legendary physicist and master bongo player Richard Feynman put it like this: “The uncertainty principle ‘protects’ quantum mechanics. Heisenberg recognized that if it were possible to measure both the momentum and the position simultaneously with greater accuracy, quantum mechanics would collapse. So he proposed that must be impossible.”

Continue reading “Our Existence Always Contains Some Uncertainty. This Physics Principle Explains Why” »