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Lecture A.G. Dijkstra

Roster

WhenWhere
15 June 2010 FWN-Building 5113.0202, Nijenborgh 4, 9747 AG, Groningen
Speaker: Dr. A.G. Dijkstra
Affiliation: Dept. of Chemistry, Kyoto University, Japan
Title: Quantum entanglement in a complex environment
Date: Tue Jun 15, 2010
Start: 11.00
Location: FWN-Building 5113.0202
Host: T.L.C. Jansen
Telephone: +31 50 363 4957

Abstract

 

Quantum mechanical entanglement of several qubits is not only the essential ingredient for quantum information, but also relevant for biological systems. Solid evidence exists that the photosynthetic complexes in bacteria and plants operate using entanglement between their light harvesting molecules, which can consequently be described as qubits. To understand this, it is crucial to include the decohering influence of the proteins surrounding these molecules. Modern femtosecond laser experiments can probe the qubit dynamics on a femtosecond time scale. Their interpretation requires a theory that properly explains quantum mechanical effects in the protein environment and the typical time scale on which it evolves. We develop such theory to go beyond the commonly used approximation of an ultrafast environment and study the effects on qubit entanglement.

 

A.G. Dijkstra and Y. Tanimura, Phys. Rev. Lett. 2010.

Last modified:22 October 2012 2.30 p.m.