Universal Thermometry for Quantum Simulation

Details Universal Thermometry for Quantum Simulation Universal Thermometry for Quantum Simulation

2009-08-20

arxiv.org/abs/0908.3015v2

Phys. Rev. Lett. 106, 225301 (2011)

Physics

Condensed Matter

Quantum Gases

4 pages, 3 figures, title, abstract and introduction modified

Scientific paper

Quantum simulation is a highly ambitious program in cold atom research currently being pursued in laboratories worldwide. The goal is to use cold atoms in optical lattice to simulate models for unsolved strongly correlated systems, so as to deduce their properties directly from experimental data. An important step in this effort is to determine the temperature of the system, which is essential for deducing all thermodynamic functions. This step, however, remains difficult for lattice systems at the moment. Here, we propose a method based on a generalized fluctuation-dissipation theorem. It does not reply on numerical simulations and is a universal thermometry for all quantum gases systems including mixtures and spinor gases. It is also unaffected by photon shot noise.

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