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Filtering by: Creator Hansen, Michael M. License Attribution-NonCommercial-NoDerivs 3.0 United States

A quantum phase transition in a quantum external field: Superposing two magnetic phases

Creator:

Rams, Marek M., Zwolak, Michael, and Damski, Bogdan

Abstract:

We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a superposition state. We show that - by adiabatically driving such a system - one can prepare a quantum...

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: Superposing two magnetic phases Marek M. Rams1,2,3, Michael Zwolak4 & Bogdan Damski1 1Los Alamos National
Efficient Fabrication of Nanoporous Si and Si/Ge Enabled by a Heat Scavenger in Magnesiothermic Reactions

Creator:

Luo, Wei, Wang, Xingfeng, Meyers, Colin, Wannenmacher, Nick, Sirisaksoontorn, Weekit, Lerner, Michael M., and Ji, Xiulei

Abstract:

Magnesiothermic reduction can directly convert SiO₂ into Si nanostructures. Despite intense efforts, efficient fabrication of highly nanoporous silicon by Mg still remains a significant challenge due to the exothermic reaction nature. By employing table salt (NaCl) as a heat scavenger for the magnesiothermic reduction, we demonstrate an effective route to...

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Wannenmacher2, Weekit Sirisaksoontorn1, Michael M. Lerner1 & Xiulei Ji1 1Department of Chemistry, 2Department