Quantum Coherence in Magnetic Grains

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We consider a model of the dynamics of a magnetic grain, incorporating interactions with nuclear and paramagnetic spins, conduction electrons, and phonons. Decoherence comes both from the spins and the electrons, although electron effects can be neglected if the substrate is insulating, and the grain has spin $S \le 10^5$. A successful experiment will require both isotopic and chemical purification, if coherence is to be seen; we suggest a "spin echo" arrangement to do this.
4 pages, RevTex, 1 figure, e-mail:<stamp@physics.ubc.ca> Submitted to PRL on 30 Aug. 95

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/27389

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9511015
 http://arxiv.org/abs/cond-mat/9511015

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arXiv