What is Quantum Computing and Quantum Information Sciences?
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A quantum computer is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. In a classical (or conventional) computer, the amount of data is measured by bits; in a quantum computer, it is measured by qubits. The basic principle of quantum computation is that the quantum properties of particles can be used to represent and structure data, and that quantum mechanisms can be devised and built to perform operations with this data. Quantum computers use the principle of electron entanglement and use the 32 quantum states of the electron to perform calculations. If a successful quantum computer could be constructed, it would be millions of times more powerful than any computer today.\n\nQuantum information science concerns information science that depends on quantum effects in physics. It includes theoretical issues in computational models as well as more experimental topics in quantum physics including what can and cannot be done with quantum information. Quantum computing is a subfield of quantum information science
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A computer is a device or machine for making calculations or controlling operations that are expressible in numerical or logical terms. Computers are made from components that perform simple well-defined functions. The complex interactions of these components endow computers with the ability to process information. If correctly configured (usually by programming) a computer can be made to represent some aspect of a problem or part of a system. ...
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first, you get a government grant. Then you figure out all the physics issues with the underlying technology. Finally, you realize that quantum computing is still just a dream.\n\nSeriously though, we have not yet figured out the underlying physics of how to get a quantum computer to work. Once we do, it'll still be years before we can make that technology mass-producable. At this point in time, I think we'd be lucky to see quantum computers being as common as the computers we have today within our lifetime.
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In quantum communication, the information to be transmitted is encoded on individual\nphotons that are sent either in free space or through low loss optical fibres. Of special interest\nin quantum communication are light beams where twin- and multiple photons become\nentangled (correlated more strongly than permitted by pure classical effects) in such a way\nthat any measurement one on photon in one beam immediately, irrespective of distance,\naffects the possible outcomes of measurements on other photon(s) in the other beam(s). It is\nlike having a pair of dice, miraculously prepared in such a way that whenever one of the two\nshows a certain number, its twin partner will always show the same number, even if one is in\nMonte Carlo and the second in Las Vegas. "Spooky action at a distance" was the phrase\nAlbert Einstein used to describe the quantum mechanical correlation in entangled beams.\nSuch special light beams (in physics language - quantum states) can be generated using nonlinear\noptical effects when intense laser pulses hit special crystals. In IST-QuComm,\nentangled twin-photons, or even triple- or quadruple-entangled photons has been used for\nquantum cryptography and to teleport quantum states. The latter process refers to\ntransferring the full information content of a quantum state from one place to the other\nwithout sending the state itself. It should be stressed that two particles in the same quantum\nstate are identical; they are indistinguishable even in principle. Thus if we transfer the\nquantum state from one particle to another we have indeed transferred-"teleported" the\nparticle itself. The requirement of quantum mechanics in the process is that the "identity"-the\nquantum state of the original particle is destroyed in the teleportation process. Besides being\nof fundamental interest, quantum teleportation may also play a role in quantum computation,\nand could also be a way to transfer quantum information between separated quantum\n"processors".
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well optimization is used by companies to get the most amount for their money. (highest volume using lowest surface area). theres differential equations that model population and waves and transients in circuits. \nif you wantto be technical, then quantum mechanics describes everything using a differnetial equation (schrodinger wave eq).\num 1 of the easiest would be measuring speed and acceleration. as in if you know your position over time, then you can find your speed by differentiating and acceleration by differentiating again.\n\nlook in any calculus text book at the questions and there are a lot that give you a real world situation. i dunno. hope that helped.
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Quite frankly I find it fascinating.  I haven't had the opportunity to study up as much as I'd like on the new ideas coming forth, but I would like to suggest a movie to you; it's called "What the *bleep* do we know?".  There are many credited scientists and mathematicians and other experts in their fields who discuss quantum mechanics in a way that your everyday Joe can understand.  Although a good chunk of it shows how the ideas relate back to the body/self.  Some of these ideas are portrayed in a "story" about a deaf photographer--which is an excellent idea, considering much of quantum mechanics deals with the idea of an "ultimate observer".   One warning, though; the movie does, at one point, all but mathematically dispel the notion of "God"...\n\nHope you like it!
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In June 2002 the Ph.D. project of Dr. Warwick Bowen led by Dr. Ping Koy Lam, Prof. Hans Bachor and Dr. Timothy Ralph of the Australian National University achieved (quantum) teleportation of a laser beam. [2]\n\nIt was a successful quantum teleportation experiment involving the use of 'entangled' photons. A target photon was successfully 'scanned', its properties 'copied' onto a transition photon, and finally the photon was recreated at another location of arbitrary distance, proving in essence the theorems proposed by Einstein to explain his 'strange action at a distance'.\n\nScientists teleported atoms in 2004. [3]
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A computer is an information-processing machine that works by converting all kinds of information into binary numbers (ones and zeros) and then using simple mathematics to make decisions about, or to rearrange, those numbers. There are two things essential to understanding the basics of how a computer works. One is that a computer treats any type of information (not only numbers but also letters, words, dates, and so on) as if it consisted simply of binary ones and zeros. For example, a computer can translate the letter “A” typed into its keyboard into a string of ones and zeros, such as 1000001. One reason to do this is that once in binary form, the information can be stored and moved about more easily.
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How about this one?\nhttp://www.angryflower.com/schrod.gif\n\nPS. I don't know which is worse - thinking "Wow, Googling cartoons about quantum physics sounds fun!" or actually laughing out loud at it. :)
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a molecule can act like a silicon chip, when electrons in the orbitals are spinning in their fixed directions. by placing electrons into certain spins, data can be stored like a binary code. thats what quantum computing hopes to achieve; building micro computers.
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quantum computer is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. In a classical (or conventional) computer, the amount of data is measured by bits; in a quantum computer, it is measured by qubits. The basic principle of quantum computation is that the quantum properties of particles can be used to represent and structure data, and that quantum mechanisms can be devised and built to perform operations with this data.1\n\nThough quantum computing is still in its infancy, experiments have been carried out in which quantum computational operations were executed on a very small number of qubits. Research in both theoretical and practical areas continues at a frantic pace, and many national government and military funding agencies support quantum computing research, to develop quantum computers for both civilian and national security purposes, such as cryptanalysis. 2 (See Timeline of quantum computing for details on current and past progress.)\n\nIt is widely believed that if large-scale quantum computers can be built, they will be able to solve certain problems faster than any classical computer. Quantum computers are different from classical computers such as DNA computers and computers based on transistors, even though these may ultimately use some kind of quantum mechanical effect (for example covalent bonds). Some computing architectures such as optical computers may use classical superposition of electromagnetic waves, but without some specifically quantum mechanical resource such as entanglement, they do not share the potential for computational speed-up of quantum computers.
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see this link\nhttp://www.colorado.edu/physics/2000/quantumzone/index.html
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Science : May be uncertainty principle in quantum effect. \nMaths : Probability theory
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Gene sequences\nQuantum computation\nEvidence of dark matter\nSynthesis of anti matter\nTeletransportation\nTime travel (possible for atoms)\nChaos and its applications\nNanotech\nOrganic electronics\nWait for LHC
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According to quantum mechanics, an object exists for you only when you are aware of its existence. Otherwise it is a probablitly.\nI will give an example: If you look away from your computer to say a TV, then the computer object has ceased to exist and TV has started existing. But the you who is looking at TV is different from the previous you who was looking at the computer, because when the computer ceased to exist, so did you and so did the universe frame containing you, computer and the elements like light that made looking at computer possible. Now you, TV and the process of looking at TV is happening in a different universe.\nNow if you again turn your head to look towards computer, you will cease to exist with the TV universe and enter a third universe identical to the first universe. But how do you see the same computer if you are entering the new universe, then this is one of the less known uses of our memory, that is being used by the universe to make fools of us.
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A quantum dot, also called a semiconductor nanocrystal or artificial atom is a semiconductor crystal whose size is on the order of just a few nanometers.\n\nA quantum wire is an electrically conducting wire, in which quantum effects are affecting transport properties.
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Little quarks, of sub-atomic size, running around making other quantum size headachs for scientists and mathematicians.\n\nActually, Quantum mechanics is a fundamental branch of theoretical physics that replaces Newtonian mechanics and classical electromagnetism at the atomic and subatomic levels. It is the underlying framework of many fields of physics and chemistry, including condensed matter physics, quantum chemistry, and particle physics. Along with general relativity, it is one of the pillars of modern physics.