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Thermometry and Refrigeration in a Two-Component Mott Insulator of Ultracold Atoms

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arxiv 1008.4610 v4 pith:5OXYHU4D submitted 2010-08-26 cond-mat.quant-gas physics.atom-ph

Thermometry and Refrigeration in a Two-Component Mott Insulator of Ultracold Atoms

classification cond-mat.quant-gas physics.atom-ph
keywords adiabaticatomscoolingfieldgradientinsulatormottspin
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Interesting spin Hamiltonians can be realized with ultracold atoms in a two-component Mott insulator (2CMI). It was recently demonstrated that the application of a magnetic field gradient to the 2CMI enables new techniques of thermometry and adiabatic cooling. Here we present a theoretical description which provides quantitative analysis of these two new techniques. We show that adiabatic reduction of the field gradient is capable of cooling below the Curie or N\'eel temperature of certain spin ordered phases.

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