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Recordamos el coloquio de hoy,<br>
<br>
<br>
<br>
COLOQUIOS DEL DEPARTAMENTO DE FÍSICA FCEYN - UBA<br>
<br>
<a href="http://www.df.uba.ar" target="_blank">http://www.df.uba.ar</a><br>
<br>
Charlas, café y masitas<br>
<br>
En el Aula 8, 1er piso, Pabellón I, Ciudad Universitaria<br>
<br>
Jueves 8/11, 14hs:<br>
<br>
THE QUANTUM WAY OF DOING COMPUTATIONS<br>
<br>
RAINER BLATT<br>
<br>
Institut fur Experimentalphysik, Innsbruck University<br>
<br>
<br>
Since the mid nineties of the 20th century it became apparent that one<br>
of the centuries? most important technological inventions, computers in<br>
general and many of their applications could possibly be further enormously<br>
enhanced by using operations based on quantum physics. This is timely since<br>
the classical roadmaps for the development of computational devices,<br>
commonly known as Moore?s law, will cease to be applicable within the next<br>
decade due to the ever smaller sizes of the electronic components that soon<br>
will enter the quantum physics realm.<br>
Computations, whether they happen in our heads or with any computational<br>
device, always rely on real physical processes, which are data input, data<br>
representation in a memory, data manipulation using algorithms and<br>
finally, the data output. Building a quantum computer then requires the<br>
implementation of quantum bits (qubits) as storage sites for quantum<br>
information, quantum registers and quantum gates for data handling and<br>
processing and the development of <br>
quantum algorithms. In this talk, the basic functional principle of a<br>
quantum computer will be reviewed and a few technologies for their<br>
implementation will be highlighted. In particular, the quantum way of doing<br>
computations will be illustrated by showing how quantum correlations,<br>
commonly known as ?entanglement? can enhance computational processes. Aside<br>
from their use for quantum computers, these quantum technologies open wide<br>
perspectives for applications in many <br>
technical areas. Examples such as quantum enhanced metrology and quantum<br>
simulations will be presented. <br>
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