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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1643
DTSTART:20100319T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T162218Z
LAST-MODIFIED:20100308T202618Z
LOCATION:2241 Chamberlin Hall (coffee at 3:30 pm)
SUMMARY:Quantum Computer: Dream and Realization\, Physics Department C
 olloquium\, Rainer Blatt\, Institute for Experimental Physics Universi
 ty of Innsbruck and Institute for Quantum Optics and Quantum Informati
 on
DESCRIPTION:Computational operations always rely on real physical proc
 esses\, which are data input\, data representation in a memory\, data 
 manipulation using algorithms and finally\, the data output. With conv
 entional computers all the processes are classical processes and can b
 e described accordingly. It is known for several years now that certai
 n computations could be processed much more efficiently using quantum 
 mechanical operations. Therefore\, it would be desirable to build a qu
 antum computer. This requires the implementation of quantum bits (qubi
 ts)\, quantum registers and quantum gates and the development of quant
 um algorithms. In this talk\, several techniques for the implementatio
 n of a quantum computer will be briefly reviewed. In particular\, an a
 pproach based on laser-cooled trapped ions will be highlighted in deta
 il and experimental realizations of quantum registers and quantum gate
  operations using strings of trapped ions in a linear Paul trap will b
 e discussed. In particular\, the quantum way of doing computations wil
 l be illustrated by means of quantum algorithms for the creation of en
 tangled states and their analysis using tomography measurements. More 
 generally\, applications of such states for quantum metrology will be 
 presented. 
URL:https://www.physics.wisc.edu/events/?id=1643
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