All Optical Implementation of Multi-Spin Entanglement in a Semiconductor Quantum Well

Details All Optical Implementation of Multi-Spin Entanglement in a Semiconductor Quantum Well All Optical Implementation of Multi-Spin Entanglement in a Semiconductor Quantum Well

2002-06-27

arxiv.org/abs/quant-ph/0206191v1

Physics

Quantum Physics

17 pages, 3 figures

Scientific paper

10.1038/nmat839

We use ultrafast optical pulses and coherent techniques to create spin
entangled states of non-interacting electrons bound to donors (at least three)
and at least two Mn2+ ions in a CdTe quantum well. Our method, relying on the
exchange interaction between localized excitons and paramagnetic impurities,
can in principle be applied to entangle a large number of spins.

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