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OnderzoekVan Swinderen Institute

Physics: Dr. C. van der Wal: Quantum optics and entanglement with electron-spin ensembles in semiconductors

Roster

WhenWhere
15 November 2007 FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen
Speaker: Physics: Dr. C. van der Wal
Affiliation: University of Groningen
Title: Quantum optics and entanglement with electron-spin ensembles in semiconductors
Date: 15-11-2007
Start: 16.00
Location: FWN-Building 5111.0080

Abstract

Quantum entanglement between distant degrees of freedom is an important resource for quantum information technologies, and of interest for fundamental research on quantum theory. As a concept, entanglement became widely known from the Einstein-Podolsky-Rosen paradox. Realizations were, until now, mainly carried out with pairs of photons or elementary particles, and with spins in simple and isolated quantum systems like alkali atoms.

I will present a novel approach for the realization and study of entanglement in solid state. Entanglement is generated between spin-wave modes of electron ensembles in two distant semiconductors. The states are prepared via optical pulses that interact with the spin ensembles, combined with quantum-optical measurement techniques. This provides a new model system for studies of how entanglement is spontaneously lost in complex quantum systems.

Last modified:12 September 2014 11.21 a.m.