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arXiv · 0806.1220

Quantum-Fluctuation-Driven Coherent Spin Dynamics in Small Condensates

Xiaoling Cui·Yupeng Wang·Fei Zhou
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Abstract

We have studied quantum spin dynamics of small condensates of cold sodium atoms. For a condensate initially prepared in a mean field ground state, we show that coherent spin dynamics are {\em purely} driven by quantum fluctuations of collective spin coordinates and can be tuned by quadratic Zeeman coupling and magnetization. These dynamics in small condensates can be probed in a high-finesse optical cavity where temporal behaviors of excitation spectra of a coupled condensate-photon system reveal the time evolution of populations of atoms at different hyperfine spin states.

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Xiaoling Cui, Yupeng Wang, Fei Zhou. 2008-06-06. Quantum-Fluctuation-Driven Coherent Spin Dynamics in Small Condensates. https://doi.org/10.1103/physreva.78.050701

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