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arXiv · 1203.3753

Adiabatic Passage and Spin Locking in Tm$^{3+}$:YAG

María Florencia Pascual-Winter·Robert-Christopher Tongning·Romain Lauro·Anne Louchet-Chauvet·Thierry Chanelière·Jean-Louis Le Gouët
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Abstract

In low concentration Tm$^{3+}$:YAG, we observe efficient adiabatic rapid passage (ARP) of thulium nuclear spin over flipping times much longer than $T_2$. Efficient ARP with long flipping time has been observed in monoatomic solids for decades and has been analyzed in terms of spin temperature and of the thermodynamic equilibrium of a coupled spin ensemble. In low-concentration impurity-doped crystals the spin temperature concept may be questioned. A single spin model should be preferred since the impurity ions are weakly coupled together but interact with the numerous off-resonant matrix ions that originate the spin-spin relaxation. The experiment takes place in the context of quantum information investigation, involving impurity-doped crystals, spin hyperpolarization by optical pumping, and optical detection of the spin evolution.

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María Florencia Pascual-Winter, Robert-Christopher Tongning, Romain Lauro, Anne Louchet-Chauvet, Thierry Chanelière, Jean-Louis Le Gouët. 2012-03-16. Adiabatic Passage and Spin Locking in Tm$^{3+}$:YAG. https://doi.org/10.1103/physrevb.86.064301

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