Optical pumping of quantum dot nuclear spins

Preprint

27 March 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0303575

Abstract

An all-optical scheme to polarize nuclear spins in a single quantum dot is analyzed. The hyperfine interaction with randomly oriented nuclear spins presents a fundamental limit for electron spin coherence in a quantum dot; by cooling the nuclear spins, this decoherence mechanism could be suppressed. The proposed scheme is inspired by laser cooling methods of atomic physics and implements a "controlled Overhauser effect" in a zero-dimensional structure.

Keywords

POLARIZE NUCLEAR
OPTICAL PUMPING
OPTICAL SCHEME
NUCLEAR SPINS
ELECTRON SPIN
QUANTUM DOT
DOT NUCLEAR
COOLING
LASER

All Related Versions

Version 1, 2003-03-27, ArXiv
Published version: Physical Review Letters, 91 (1), 017402.

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