Quantum Computer
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1440Physics Colloquium: "Melting a Quantum Computer"
http://illinois.edu/calendar/detail/1968/31907572
<p><font color="Gray">Source: illinois.edu --- Thursday, August 28, 2014</font><br />After an elementary introduction to some unique properties of topological phases of matter, I will discuss the possibility of realizing bound topological qubits on semiclassical defects in topological phases coexisting with a conventional ordered phase. These defects take the form of vortices, dislocations, or disclinations, and there is a rich interplay between topology and symmetry which will be outlined. ...</p>http://illinois.edu/calendar/detail/1968/31907572Thu, 28 Aug 2014 11:44:17 GMTHow To Program A Quantum Computer
http://semiengineering.com/how-to-program-a-quantum-computer/
<p><font color="Gray">Source: semiengineering.com --- Thursday, August 28, 2014</font><br /><img src="http://semiengineering.com/wp-content/uploads/2014/08/Quantum4.gif" & width="65" & height="54" style="margin: 5pt 10px 0px 0px; float: left;" border="1" align="left" alt="" /><b>Quantum</b> computers have captured the attention of the <b>Computer</b> science world because they are faster than classical computers for some problems. Spend any time reading about <b>Quantum</b> computing technology, and you’ll see that statement over and over again. But what does it actually mean, given that classical computing is a mature, highly optimized technology and <b>Quantum</b> computers are in their infancy? The phrase “<b>Quantum</b> speedup” is used to describe a wide range of situations, in which the advantage <b>Quantum</b> computers offer might be quite large, relatively small, or non-existent. At one extreme, we find “strong” <b>Quantum</b> computing algorithms. These are the algorithms that started it all, that convinced the community that <b>Quantum</b> computing was worth pursuing. Grover’s search algorithm , for example, is provably faster than any known or potential classical search algorithm. In the best classical search algorithms, the time required grows at the same rate as the number of items, while the time required by Grover’s algorithm increases only as the square root of the number of items. Similarly, Shor’s algorithm for factoring large numbers is faster than any known classical algorithm, with the processing time increasing as (log N)³, where N is the length in bits of the number being factored. A <b>Quantum</b> <b>Computer</b> using these algorithms will require fewer computational steps than a classical <b>Computer</b> solving the same problems. Shor’s algorithm , ...</p>http://semiengineering.com/how-to-program-a-quantum-computer/Thu, 28 Aug 2014 07:01:43 GMT