Towards quantum optics and entanglement with electron spin ensembles in semiconductors

Caspar H. van der Wal*, Maksym Sladkov

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

5 Citaten (Scopus)
318 Downloads (Pure)

Samenvatting

We discuss a technique and a material system that enable the controlled realization of quantum entanglement between spin-wave modes of electron ensembles in two spatially separated pieces of semiconductor material. The approach uses electron ensembles in GaAs quantum wells that are located inside optical waveguides. Bringing the electron ensembles in a quantum Hall state gives selection rules for optical transitions across the gap that can selectively address the two electron spin states. Long-lived superpositions of these electron spin states can then be controlled with a pair of optical fields that form a resonant Raman system. Entangled states of spin-wave modes are prepared by applying quantum-optical measurement techniques to optical signal pulses that result from Raman transitions in the electron ensembles. (C) 2008 Elsevier Masson SAS. All rights reserved.

Originele taal-2English
Pagina's (van-tot)935-941
Aantal pagina's7
TijdschriftSolid State Sciences
Volume11
Nummer van het tijdschrift5
DOI's
StatusPublished - mei-2009
EvenementSymposium N on Solid State Approaches to Quantum Information Processing and Communication held at the 2007 EMRS Spring Meeting - , France
Duur: 28-mei-20071-jun.-2007

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