Quantum Mechanics

Quantum Mechanics

Quantum mechanics news, blogs, and links. According to Wikipedia: Quantum mechanics is a fundamental branch of theoretical physics that replaces classical mechanics and classical electromagnetism at the atomic and subatomic levels. It is...

Quantum mechanics news, blogs, and links. According to Wikipedia: Quantum mechanics is a fundamental branch of theoretical physics that replaces classical mechanics and classical electromagnetism at the atomic and subatomic levels. It is the underlying mathematical framework of many fields of physics and chemistry, including condensed matter physics, atomic physics, molecular physics, computational chemistry, quantum chemistry, particle physics, and nuclear physics. Along with general relativity, quantum mechanics is one of the pillars of modern physics.

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January 4th marks the passing of Erwin Schrödinger. Schrödinger was an Austrian physicist who was one of the founders of quantum mechanics. He described the quantum state of a particle by its wavefunction. His equation is one of the basic equation of quantum mechanics. He is also famous for a thought experiment that has become known as Schrödinger's cat. The Heisenberg principle states the position and the velocity of a particle cannot be...  
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From Wikipedia: In quantum mechanics, the Heisenberg uncertainty principle states that certain pairs of physical properties, like position and momentum, cannot both be known to arbitrary precision. That is, the more precisely one property is known, the less precisely the other can be known… The measurement of position necessarily disturbs a particle’s momentum, and vice versa. Stated a little more simply, the sheer act of measuring a particle...  
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One YouTuber claims it does and this highly informed video both presents and refutes his claims most educationally and, in the last half, hilariously: Your Thoughts? Posted in Atheism, Atheist Videos, New Atheism, Physics, Science, Videos  
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December 5th is Werner Heisenberg's birthday. Heisenberg was a German physicist who is best known for the uncertainty principle of quantum mechanics. The uncertainty principle is one of the main differences between the study of classical mechanics and quantum mechanics. In classical mechanics, a physical quantity can be simultaneously assigned to any particle. In quantum mechanics, the uncertainty principle states the more closely you measure...  
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What I find most interesting is that even when the Corinthians are engaging in the craziest, most un-Christlike behavior, Paul doesn't deny their faith. He never calls them not Christian. I find this to be very good news. Christianity is not like Quantum Mechanics. In Quantum Mechanics, there is no question of entanglement. The states are so obviously entangled that the false conclusion may lead us to reject the initial hypothesis entirely...  
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Written by Joycebabu on
Phenomenally powerful quantum computing, the stuff of science fiction, has edged closer to reality, thanks to recent breakthroughs. Quantum computing relies on controlling and observing the behaviour of quantum particles or single electrons, to deliver phenomenal processing power at blinding speeds. A team of Andrew Dzurak, professor, University of New South Wales (UNSW) and Andrea Morello, at the ARC Centre of Excellence for Quantum Computer Technology, achieved these breakthroughs. They have for the first time demonstrated two ways to place an electron in a nano (billionth of a metre) sized device on a silicon chip. The achievements set the stage for the next crucial ... Read Full Story
Written by starling on
At the end of the nineteenth century scientists thought they had all the answers. They were spectacularly wrong, demonstrated by "The Ultraviolet Catasptrophe": a light experiment which simply couldn't be explained by the science of the day. This lead to quantum mechanics, the particle-wave duality of light, and an entire new mode of science - which we've just broken again with a massive laser! The explanation of the ultraviolet catastrophe was the photon, the idea that light had a minimum unit whose energy was determined by its color - so in certain circumstances, you could shine as much red light as you wanted on ... Read Full Story
Written by starling on
"With quantum computing you are able to attack some problems on the time scales of seconds, which might take an almost infinite amount of time with classical computers." Professor David Awschalom of the University of California, Santa Barbara. Quantum computers can efficiently render every physically possible quantum environment, even when vast numbers of universes are interacting. Quantum computers can also efficiently solve certain mathematical problems, such as factorization, which are classically intractable, and can implement types of cryptography which are classically impossible. "Quantum computation," summarzies Oxford physicist David Deutsch, "is a qualitatively new way of harnessing nature." Quantum computing sounds like science fiction -as ... Read Full Story
Written by sumariany on
In 1895, Röntgen discovered X-rays, which turned out to be high-frequency electromagnetic radiation. Radioactivity was discovered in 1896 by Henri Becquerel, and further studied by Marie Curie, Pierre Curie, and others. This initiated the field of nuclear physics. In 1897, Joseph J. Thomson discovered the electron, the elementary particle which carries electrical current in circuits. In 1904, he proposed the first model of the atom, known as the plum pudding model. (The existence of the atom had been proposed in 1808 by John Dalton.) These discoveries revealed that the assumption of many physicists that atoms were the basic unit of matter was flawed, and ... Read Full Story
Written by starling on
“Quantum computers have the potential to solve problems that would take a classical computer longer than the age of the universe.” Steve Jurvetson: AI, Nanotech and the Future of the Human Species Visionary venture capitalist, Steve Jurvetson, is quoting quantum-computing pioneer, Oxford Professor David Deutsch, who wrote in his controversial masterpiece, Fabric of Reality : "quantum computers can efficiently render every physically possible quantum environment, even when vast numbers of universes are interacting. Quantum computers can also efficiently solve certain mathematical problems, such as factorization, which are classically intractable, and can implement types of cryptography which are classically impossible. Quantum computation is a qualitatively ... Read Full Story
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