Why don’t we experience ‘quantum weirdness’ in our everyday lives? A brief dive into the current crossroads of quantum physics, as well as looking at how scientists may endeavour to solve lingering questions about the quantum world and help move forward our understanding of the Universe.
For the first time, an experiment was able to demonstrate that it isn’t just identical quantum particles that can become entangled, but particles with opposite electric charges, too. (The π+ and the π–, for what it’s worth, are one another’s antiparticle.) The technique of passing two heavy nuclei very close to one another at nearly the speed of light allows for photons, arising from the electromagnetic field of each nucleus, to interact with the other nucleus, occasionally forming a rho particle that decays into two pions. When both nuclei do this at once, the entanglement can be seen, and the radius of the atomic nucleus can be measured.
It’s also remarkable that measuring the size of the nucleus through this method, which uses the strong force rather than the electromagnetic force, gives a different, larger result than one would get by using the nuclear charge radius. As lead author on the study, James Brandenburg, put it, “Now we can take a picture where we can really distinguish the density of gluons at a given angle and radius. The images are so precise that we can even start to see the difference between where the protons are and where the neutrons are laid out inside these big nuclei.” We now have a promising method to probe the internal structure of these complex, heavy nuclei, with more applications, no doubt, soon to come.
Quantum physics shows that there is no such thing as ‘nothing.’ Even in a vacuum, particles can blink into and out of existence.
Julian Barbour, physicist, talks the illusion of time, the origin of the universe, and what is reality. He also discusses his newest book, “The Janus Point: A New Theory of Time,” which makes the radical argument that the growth of order drives the passage of time — and shapes the destiny of the universe.
Read “The Janus Point”: https://www.basicbooks.com/titles/julian-barbour/the-janus-point/9780465095469/
Julian Barbour’s Website: http://www.platonia.com/
Continue reading “Julian Barbour on Time, the Universe, and Reality | Closer To Truth Chats” »
According to reports from Spanish newspaper El País, researchers have discovered a way to speed up, slow down, and even reverse quantum time by taking advantage of unusual properties within a quantum world in specific ways. It’s a huge breakthrough, which the researchers have detailed in a series of six new papers featured in Advancing Physics.
The papers were originally published in 2018, and they detail how researchers were able to rewind time to a previous scene, as well as even skip several scenes forward. Being able to reverse and even control quantum time is a huge step forward, especially as we’ve seen increasing movements into quantum simulators.
The realm of quantum physics is a complex one, no doubt, and with analog quantum computers showing such promise at solving intense problems, it only seens fitting that research into controlling and reversing quantum time would prove so fruitful. The researchers say that the control they can acquire on the quantum world is very similar to controlling a movie.
A team led by Boston College has devised a new quantum sensor method to image and comprehend the source of photocurrent flow in Weyl semimetals.
In a recent paper published in the journal Nature Physics.
As the name implies, Nature Physics is a peer-reviewed, scientific journal covering physics and is published by Nature Research. It was first published in October 2005 and its monthly coverage includes articles, letters, reviews, research highlights, news and views, commentaries, book reviews, and correspondence.
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Hello and welcome! My name is Anton and in this video, we will talk about new explanations of the Fermi paradox focusing on the Hart Tipler Conjecture that tries to disprove the existence of extraterrestrial intelligence.
Links:
https://ui.adsabs.harvard.edu/abs/1975QJRAS…16…128H/abstract.
https://arxiv.org/abs/2301.09575
Potential other resolutions of Fermi paradox:
https://www.youtube.com/watch?v=b3xro2jHevk.
https://www.youtube.com/watch?v=k_B9YP5nEWw.
https://www.youtube.com/watch?v=b3xro2jHevk.
Hawking radiation: https://youtu.be/6h6MgvBLrxk.
Penrose process: https://youtu.be/A-WIsnoX2Uw.
Continue reading “Where Are All The Alien Robots? Hart-Tipler Conjecture and What It Gets Wrong” »
Do you want to get started with Quantum Machine Learning? Have a look at Hands-On Quantum Machine Learning With Python.
This article will explain the most important parts of the Quantum Approximate Optimization Algorithm (QAOA). QAOA is a machine learning algorithm that you can use to solve combinatorial optimization problems.
When two forms of hydrogen smash together an unusual process called quantum tunnelling can occur. Researchers have now worked out how rarely it happens.
