Dr. M. Blaauboer, Delft University of Technology: Quantum walks in nanospace
|19 November 2009||FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Dr. Miriam Blaauboer|
|Affiliation:||Delft University of Technology|
|Title:||Quantum walks in nanospace|
The quantum walk is the quantum-mechanical analogue of the classical random walk.
The main difference between the two lies in the role of the coin: whereas in the classical
random walk the coin is a classical object with two possible measurement outcomes
("heads" or "tails", see picture), in the quantum walk the coin is a quantum-mechanical
object – for example, a two-level system such as aspin-1/2 particle - which can be
measured along different bases and hence has a multi-sided character. In recent years,
the first implementations of quantum walks have been demonstrated in various
areas of physics, ranging from quantum optics to atomic physics.
In this colloquium I will tell about the strikingly different dynamic behavior between classical and
quantum random walks, discuss the use of quantum walks to speed-up quantum dynamics,
and comment on how their implementation in actual physics systems, with particular focus
on solid-state nanostructures.
|Last modified:||12 September 2014 11.21 a.m.|