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Archive for the ‘quantum physics’ category: Page 143

Oct 14, 2023

Quantum Erasure: A breakthrough in error detection

Posted by in categories: computing, quantum physics

Bahadır Eroğlu/iStock.

Wouldn’t it be great if researchers could use a special quantum eraser to remove their mistakes?

Oct 14, 2023

An Explanation of The Quantum Vacuum Interstellar Ramjet: The Game Changing Drive You Haven’t Heard

Posted by in categories: media & arts, quantum physics, space travel, sustainability

#spacetravel #quantumvacuum IRIS-AsteronX & The Eos Project.
Website: www.asteronx.com Links to research papers: Shinichi Seike, 1969, “Quantum Electric Space Vehicle”, 8th Symposium on Space Technology and Science, Tokyo. Froning, H. D., “Propulsion Requirements for a Quantum Interstellar Ramjet”, Journal of the British Interplanetary Society, vol. 33, p. 265, 1980.Froning, H. D., “Investigation of a quantum ramjet for interstellar flight” (AIAA Preprint 81–1534, 1981).Robert L. Forward, Extracting Electrical Energy From the Vacuum by Cohesion of Charged Foliated Conductors, Physical Review B, Vol. 30, pp. 1700–1702 (1984).“Casimir-cavity-induced conductance changes,” G. Moddel, A. Weerakkody, D. Doroski, D. Bartusiak, Physical Review Research, 3, L022007 (2021); DOI: 10.1103/PhysRevResearch.3.L022007.Garret Moddel: Zero-Point Energy Technology.
https://www.colorado.edu/faculty/moddel/research/zero-point-…gyJennifer Chu, “Quantum fluctuations can jiggle objects on the human scale”, MIT News Office, 2020.Dr Gregory L. Matloff, The Zero-Point Energy (ZPE) Laser and Interstellar Travel, Academia.edu, posted by Adam Crowl.
https://www.academia.edu/Ivlev, B.I… (2016). Conversion of zero point energy into high-energy photons. Revista mexicana de física, 62, 83–88. Recuperado en 18 de junio de 2022, de http://www.scielo.org.mx/.X. Jiang, X. Zhou and W. Peng, “Extraction of clean and cheap energy from vacuum,” 2013 International Conference on Materials for Renewable Energy and Environment, 2013, pp. 467–471, https://doi.org/10.1109/.H. David Froning, Morgan Boardman, Less Labored Acceleration and Faster-than-Light Travel in Higher Dimensional Realms, published in Faster Than Light Warp Drive and Quantum Vacuum Power by H. David Froning. Physicists are planning to build lasers so powerful they could rip apart empty space.
https://www.science.org/Terrance W. Barrett. The toroid antenna as a conditioner of electromagnetic fields into (low energy) gauge fields. Speculations in Science and Technology 21291–320 (1999). Originally presented at the Progress in Electromagnetics Research Symposium 1998, (PIERC’ 98), 13th-17th July, Nantes France. Daniel C. Cole and Harold E. Puthoff, Extracting energy and heat from the vacuum, Physical Review, Vol E48, #2, pp. 1562–1565 (August 1993).Harold White. Paul March. Advanced Propulsion Physics: Harnessing the Quantum Vacuum. (2011). https://www.lpi.usra.edu/meetings/nets2012/pdf/3082.pdfFong, K.Y., Li, HK., Zhao, R. et al. Phonon heat transfer across a vacuum through quantum fluctuations. Nature 576243–247 (2019). https://doi.org/10.1038/s41586-019-1800-4Music: Songs from the YouTube audio library.
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Oct 13, 2023

Time Travel Simulations Can Solve Impossible Problems, Physicists Say

Posted by in categories: quantum physics, time travel

For most of us, the passage of time flies in just one inexorable direction.

But for theoretical quantum physicists, time’s direction isn’t quite so inflexible. It’s possible to theoretically model, simulate, and observe the backwards flow of time in ways that are impossible to achieve in the real world.

And now, scientists have shown that simulations of backwards time travel can help solve physics problems that cannot be resolved with normal physics.

Oct 13, 2023

Matching a Measurement to a Quantum State

Posted by in categories: electronics, quantum physics

A new method identifies the most sensitive measurement that can be performed using a given quantum state, knowledge key for designing improved quantum sensors.

A quantum sensor is a device that can leverage quantum behaviors, such as quantum entanglement, coherence, and superposition, to enhance the measurement capabilities of a classical detector [1–5]. For example, the LIGO gravitational-wave detector employs entangled states of light to improve the distance-measurement capabilities of its interferometer arms, allowing the detection of distance changes 10,000 times smaller than the width of a proton. Typically, quantum sensors use systems prepared in special quantum states known as probe states. Finding the ideal probe state for a given measurement is a focus of many research endeavors. Now Jarrod Reilly of the University of Colorado Boulder and his colleagues have developed a new framework for optimizing this search [6].

Oct 13, 2023

Unraveling Quantum Secrets: Physicists Bridge Two Quantum Worlds

Posted by in categories: biological, chemistry, particle physics, quantum physics

“The surprising thing we found is that in a particular kind of crystal lattice, where electrons become stuck, the strongly coupled behavior of electrons in d atomic orbitals actually act like the f orbital systems of some heavy fermions,” said Qimiao Si, co-author of a study about the research in Science Advances

<em> Science Advances </em> is a peer-reviewed, open-access scientific journal that is published by the American Association for the Advancement of Science (AAAS). It was launched in 2015 and covers a wide range of topics in the natural sciences, including biology, chemistry, earth and environmental sciences, materials science, and physics.

Oct 13, 2023

Scientists Successfully Simulate Backward Time Travel with a 25% Chance of Actually Changing the Past

Posted by in categories: quantum physics, time travel

Oh boy. What could go wrong?


Scientists trying to take advantage of the unusual properties of the quantum realm say they have successfully simulated a method of backward time travel that allowed them to change an event after the fact one out of four times. The Cambridge University team is quick to caution that they have built a time machine, per se, but also note how their process doesn’t violate physics while changing past events after they have happened.

“Imagine that you want to send a gift to someone: you need to send it on day one to make sure it arrives on day three,” explained lead author David Arvidsson-Shukur from the Cambridge Hitachi Laboratory. “However, you only receive that person’s wish list on day two.”

Continue reading “Scientists Successfully Simulate Backward Time Travel with a 25% Chance of Actually Changing the Past” »

Oct 13, 2023

So…Biocomputers Made Out of DNA Circuits May Be a Thing Now

Posted by in categories: biotech/medical, bitcoin, computing, cryptocurrencies, genetics, quantum physics

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Hello and welcome! My name is Anton and in this video, we will talk about an invention of a DNA bio computer.
Links:
https://www.nature.com/articles/s41586-023-06484-9
https://www.washington.edu/news/2016/04/07/uw-team-stores-di…perfectly/
Other videos:
https://youtu.be/x3jiY8rZAZs.
https://youtu.be/JGWbVENukKc.

#dna #biocomputer #genetics.

Continue reading “So…Biocomputers Made Out of DNA Circuits May Be a Thing Now” »

Oct 13, 2023

Where Do Space, Time and Gravity Come From?

Posted by in categories: cosmology, quantum physics

And that’s where the trouble really starts. Down there, nature is governed by quantum mechanics. This amazingly powerful theory has been shown to account for all the forces of nature, except gravity. When physicists try to apply quantum theory to gravity, they find that space and time become almost unrecognizable. They seem to start fluctuating wildly. It’s almost like space and time fall apart. Their smoothness breaks down completely, and that’s totally incompatible with the picture in Einstein’s theory.

(01:54) As physicists try to make sense of all of this, some of them are coming to the conclusion that space and time may not be as fundamental as we always imagined. They’re starting to seem more like byproducts of something even deeper, something unfamiliar and quantum mechanical. But what could that something be? Joining me now to discuss all this is Sean Carroll, a theoretical physicist who hosts his own podcast, Mindscape. Sean spent years as a research professor of physics at Caltech [California Institute of Technology], but he is now moving to Johns Hopkins as the Homewood Professor of Natural Philosophy. He’s also an external professor at the Santa Fe Institute. But no matter where he is, Sean studies deep questions about quantum mechanics, gravity, time and cosmology. He’s the author of several books, including his most recent, Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime. Sean, thank you so much for joining us today.

Oct 12, 2023

High-fidelity gates and mid-circuit erasure conversion in an atomic qubit

Posted by in categories: particle physics, quantum physics

This study reports gates between qubits encoded in the nuclear spin state of Yb atoms trapped in optical tweezers, reaching very high fidelity and demonstrating mid-circuit conversion of errors into erasure errors.

Oct 12, 2023

The quantum experiment that could help find evidence of the multiverse

Posted by in categories: cosmology, quantum physics

Scars of collisions with other universes could show up in radiation from the big bang. A new experiment aims to mimic these collisions and help us look for them.

By Miriam Frankel