what is the quantum corral ?
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Quantum corrals are two dimensional structures built atom by atom on an atomically clean metallic surface using a scanning tunneling microscope. These two dimensional structures ``corral'' electrons in the surface states of noble metals which lead to standing wave patterns in the electron density inside the quantum corral. We review the physics of quantum corrals and relate the signal of the scanning tunneling microscope to the scattering properties of substrate electrons from atomic impurities supported on the surface. The theory includes the effects of incoherent surface state electron scattering at the impurities and quantitively describes all of the current STM data on quantum corrals, including the recent quantum mirage experiments with Kondo effect. We discuss the physics underlying the recent mirage experiments and review some of the outstanding questions regarding Kondo effect from impurities in nanoscale structures on metallic surfaces. We also summarize recent work on variations of ``quantum'' corrals: optical corrals and acoustical corrals
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yes in the quantum world. hey and if no one reads this answer have i really typed it??
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Don't understand your question. Did you proof read it? I bet you didn't, did you? \n\nDo you mean 'is quantum theory able to define a quantum of a quantum?'?\n\nIf so, the answer is no. A quantum is by definition the smallest step unit. The smallest unit of energy is h bar, which equals h over 2pi.
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A team from Los Alamos National Laboratory found that quantum dots produce as many as three electrons from one high energy photon of sunlight. When today's photovoltaic solar cells absorb a photon of sunlight, the energy gets converted to at most one electron, and the rest is lost as heat. This could boost the efficiency from today's 20-30% to 65%. This work was reproduced one year later by an NREL team.\n\nFor detailed information on Quantum Dots, visit http://en.wikipedia.org/wiki/Quantum_dots\n\n-\nWWW - Weird & Wonderful Web - http://www.kudige.blogspot.com/
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a quantum leap is when an electron gets excited, moving it to the next energy level, and then falls back down.  This falling back down produces energy in the form of light. (this is the reason neon lights and similar lights light up, the electrons get excited by the electricity, and the process of them falling down produces energy in the form of light. The color is determined by which energy level it is falling from and into, and usually remains consistent for each element.) Well anyway, the electron jumping from one energy level to the next is called a 'quantum leap'
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Only on a limited basis, though, I think you'll find a better explanation then I could give you at Anton Zeilinger's site:\nhttp://www.quantum.at/zeilinger/\nHe even includes a PDF version, from the April 2000 issue, of the cover and article in Scientific American here:\nhttp://www.quantum.univie.ac.at/links/sci_am/teleportation.pdf\n\nLet me know if this helps.
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The focus in the 21st century for the forefront of physics is understand the connection between General Relativity and Quantum Mechanics. No question about this. The results could be a string theory, or loop gravity, or something completely different.\n\nAlso up there I think is a better understanding of a property we all know and love: mass. There is a search for the Higgs Boson. We need to find it and study it. Or, if it can't be observed try and determine what that means.\n\nOther challengs include being able to use the EPR phenomena of quantum entanglement to produce the first prototypes of an actual encrypted signal over a reasonable distance.\n\nNanotechnology is another challengs, in how to work those little parts into ways that form mini-computers, and also in ways that allow for various medical uses.
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Quantum mechanics is a model for understanding and predicting subatomic phenomena.  It has little use in our macro world of human dimensions.\n\nI believe the soul is in the intricate workings of the developed brain, which comes from the DNA instructions which include the development of the pre-frontal lobe, but do those instructions themselves, unacted on, without having built a brain, constitute a soul?
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Mit has open courseware on their website.  They've been videotaping the classes, but they don't have this for the quantum physics classes yet.  If you just want basic information, then you can check out some of the other physics.
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Quantum mechanics is a mathematical theory that can describe the behavior of objects that are roughly 10,000,000,000 times smaller than a typical human being. Quantum particles move from one point to another as if they are waves. However, at a detector they always appear as discrete lumps of matter. There is no counterpart to this behavior in the world that we perceive with our own senses. One cannot rely on every-day experience to form some kind of "intuition" of how these objects move. The intuition or "understanding" formed by the study of basic elements of quantum mechanics is essential to grasp the behavior of more complicated quantum systems. \n\n\nPlease visit the below url for moe information
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Hello,\n\nI looked at the source code and they are indeed tables that they are using. What they've also done is assigned a CSS class to the table. I stripped down the code so all the extra stuff you don't need is removed. Just examine the code below and you should be albe to go from there. \n\n\ncreate a file called index.htm and copy and paste the contents below into the file. \n\n<!- Index.htm file start --> \n\n<html>\n\n<head>\n<title>Sample</title>\n<link rel="stylesheet" type="text/css" href="sample.css">\n</head>\n\n<body>\n<table id="toc" class="toc" summary="Contents">\n<tbody><tr>\n<td>\n<div id="toctitle">\n<h2>Contents</h2>\n <span class="toctoggle">[<a href="javascript:toggleToc()" class="internal" id="togglelink">hide</a>]</span></div>\n<ul>\n<li class="toclevel-1"><a href="#Introduction"><span class="tocnumber">1</span> <span class="toctext">Introduction</span></a></li>\n<li class="toclevel-1"><a href="#Description_of_the_theory"><span class="tocnumber">2</span> <span class="toctext">Description of the theory</span></a>\n\n<ul>\n<li class="toclevel-2"><a href="#Quantum_mechanical_effects"><span class="tocnumber">2.1</span> <span class="toctext">Quantum mechanical effects</span></a></li>\n<li class="toclevel-2"><a href="#Mathematical_formulation"><span class="tocnumber">2.2</span> <span class="toctext">Mathematical formulation</span></a></li>\n<li class="toclevel-2"><a href="#Interactions_with_other_scientific_theories"><span class="tocnumber">2.3</span> <span class="toctext">Interactions with other scientific theories</span></a></li>\n</ul>\n</li>\n<li class="toclevel-1"><a href="#Applications_of_quantum_theory"><span class="tocnumber">3</span> <span class="toctext">Applications of quantum theory</span></a></li>\n\n<li class="toclevel-1"><a href="#Philosophical_consequences"><span class="tocnumber">4</span> <span class="toctext">Philosophical consequences</span></a></li>\n<li class="toclevel-1"><a href="#History"><span class="tocnumber">5</span> <span class="toctext">History</span></a>\n<ul>\n<li class="toclevel-2"><a href="#Founding_experiments"><span class="tocnumber">5.1</span> <span class="toctext">Founding experiments</span></a></li>\n</ul>\n</li>\n<li class="toclevel-1"><a href="#See_also"><span class="tocnumber">6</span> <span class="toctext">See also</span></a></li>\n\n<li class="toclevel-1"><a href="#References"><span class="tocnumber">7</span> <span class="toctext">References</span></a></li>\n<li class="toclevel-1"><a href="#Notes"><span class="tocnumber">8</span> <span class="toctext">Notes</span></a></li>\n<li class="toclevel-1"><a href="#External_links"><span class=&
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Quantum tunnelling ( passage of electrons/atoms through a potential energy barrier and/or other matter .... it's a probability thing ) has been suggested as a possible reason.
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In physics, a quantum leap or quantum jump is a change of an electron from one energy state to another within an atom. It is discontinuous; the electron jumps from one energy level to another instantaneously. The phenomenon contradicts classical theories, which expected energy levels to be continuous. Quantum leaps are the sole cause of the emission of electromagnetic radiation, including that of light, which occurs in quantized units called photons.
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Read "Applied Cryptography" by Bruce Schneier - It's a comprehensive academic survey of the field of Cryptography. \n\nIf you want to have real fun, why not take a look at Stephen Wiesner's work on 'quantum money', and the extension of the concept to 'quantum cryptography'. I'm sure you can Google up references!
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Quantum mechanics deals with anything that can come in fixed quanta, which is basically everything if you get small enough!\n\nMass comes in its fundamental particles, but you have other fixed packets of energy that can be treated with particle behaviour.\nA photon is a packet of light.\nA phonon is a packet of vibrational energy.\nEven magnetic flux in a superconductor has a magnetic flux quantum.
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It is a secret place. In the briefcase, it contained a document which shows where is the rabbit's foot.\n\nHowever, I'm not sure.
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Currently not possible. Scillicon is not the most efficient but its abundance on earth is amazingly practicle. They've found ways to use nickle for example that can be 1000 times faster, but they'd have to reconstruct all the mechanism of the computer. \n\nnewscientist.com search quantum computer\n\nhttp://www.google.com/search?q=site:newscientist.com+quantum+computer