The Quantum Way of Doing Computations

by Rainer Blatt

at Physics Colloquium

Tue, 21 Mar 2017, 15:00
Nanotechnology institute building (#51) room 15

Abstract

Since the mid nineties of the 20th century it became apparent that one of the centuries most important technological inventions computers in general and many of their applications could possibly be further enormously enhanced by using operations based on quantum physics This is timely since the classical roadmaps for the development of computational devices commonly known as Moore s law will cease to be applicable within the next decade due to the ever smaller sizes of the electronic components that soon will enter the quantum physics realm Computations whether they happen in our heads or with any computational device always rely on real physical processes which are data input data representation in a memory data manipulation using algorithms and finally the data output Building a quantum computer then requires the implementation of quantum bits qubits as storage sites for quantum information quantum registers and quantum gates for data handling and processing and the development of quantum algorithms In this talk the basic functional principle of a quantum computer will be reviewed It will be shown how strings of trapped ions can be used to build a quantum information processor and how basic computations can be performed using quantum techniques In particular the quantum way of doing computations will be illustrated by analog and digital quantum simulations which reach from the simulation of quantum many body spin systems over open quantum systems to the quantum simulation of a lattice gauge theory Refreshments are served at 14:45

Created on 21-02-2017 by Bar Lev, Yevgeny (ybarlev)
Updaded on 21-02-2017 by Bar Lev, Yevgeny (ybarlev)